1221130102 has 8 divisors (see below), whose sum is σ = 1831857336. Its totient is φ = 610510992.

The previous prime is 1221130087. The next prime is 1221130121. The reversal of 1221130102 is 2010311221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 13153 + ... + 51139.

It is an arithmetic number, because the mean of its divisors is an integer number (228982167).

Almost surely, 2^1221130102 is an apocalyptic number.

1221130102 is a deficient number, since it is larger than the sum of its proper divisors (610727234).

1221130102 is a wasteful number, since it uses less digits than its factorization.

1221130102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54062.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1221130102 is about 34944.6720116243. The cubic root of 1221130102 is about 1068.8595593623.

Adding to 1221130102 its reverse (2010311221), we get a palindrome (3231441323).

The spelling of 1221130102 in words is "one billion, two hundred twenty-one million, one hundred thirty thousand, one hundred two".