1021210122 has 16 divisors (see below), whose sum is σ = 2108305152. Its totient is φ = 329422560.

The previous prime is 1021210103. The next prime is 1021210133. The reversal of 1021210122 is 2210121201.

It is a super-2 number, since 2×1021210122² = 2085740226550509768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021210098 and 1021210107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2745003 + ... + 2745374.

It is an arithmetic number, because the mean of its divisors is an integer number (131769072).

Almost surely, 2^1021210122 is an apocalyptic number.

1021210122 is an abundant number, since it is smaller than the sum of its proper divisors (1087095030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021210122 is a wasteful number, since it uses less digits than its factorization.

1021210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5490413.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1021210122 is about 31956.3784243459. The cubic root of 1021210122 is about 1007.0206359895.

Adding to 1021210122 its reverse (2210121201), we get a palindrome (3231331323).

The spelling of 1021210122 in words is "one billion, twenty-one million, two hundred ten thousand, one hundred twenty-two".