1210222153 has 4 divisors (see below), whose sum is σ = 1383111040. Its totient is φ = 1037333268.

The previous prime is 1210222151. The next prime is 1210222183. The reversal of 1210222153 is 3512220121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3512220121 = 10099 ⋅347779.

It is a cyclic number.

It is not a de Polignac number, because 1210222153 - 2¹ = 1210222151 is a prime.

It is a super-2 number, since 2×1210222153² = 2929275319223910818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1210222153.

It is not an unprimeable number, because it can be changed into a prime (1210222151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86444433 + ... + 86444446.

It is an arithmetic number, because the mean of its divisors is an integer number (345777760).

Almost surely, 2^1210222153 is an apocalyptic number.

It is an amenable number.

1210222153 is a deficient number, since it is larger than the sum of its proper divisors (172888887).

1210222153 is an equidigital number, since it uses as much as digits as its factorization.

1210222153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172888886.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1210222153 is about 34788.2473401579. The cubic root of 1210222153 is about 1065.6674467522.

Adding to 1210222153 its reverse (3512220121), we get a palindrome (4722442274).

The spelling of 1210222153 in words is "one billion, two hundred ten million, two hundred twenty-two thousand, one hundred fifty-three".