1221120102130 has 64 divisors (see below), whose sum is σ = 2287654795008. Its totient is φ = 468928776960.

The previous prime is 1221120102089. The next prime is 1221120102149. The reversal of 1221120102130 is 312010211221.

It is a super-2 number, since 2×1221120102130² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37938724 + ... + 37970896.

It is an arithmetic number, because the mean of its divisors is an integer number (35744606172).

Almost surely, 2^{1221120102130} is an apocalyptic number.

1221120102130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221120102130 is a deficient number, since it is larger than the sum of its proper divisors (1066534692878).

1221120102130 is a wasteful number, since it uses less digits than its factorization.

1221120102130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33731.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1221120102130 its reverse (312010211221), we get a palindrome (1533130313351).

The spelling of 1221120102130 in words is "one trillion, two hundred twenty-one billion, one hundred twenty million, one hundred two thousand, one hundred thirty".