1221243932130 has 32 divisors (see below), whose sum is σ = 2979034383168. Its totient is φ = 320326276800.

The previous prime is 1221243932119. The next prime is 1221243932201. The reversal of 1221243932130 is 312393421221.

It is a junction number, because it is equal to n+sod(n) for n = 1221243932091 and 1221243932100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333671376 + ... + 333675035.

It is an arithmetic number, because the mean of its divisors is an integer number (93094824474).

Almost surely, 2^{1221243932130} is an apocalyptic number.

1221243932130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221243932130 is an abundant number, since it is smaller than the sum of its proper divisors (1757790451038).

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

1221243932130 is a wasteful number, since it uses less digits than its factorization.

1221243932130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667346482.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 1221243932130 in words is "one trillion, two hundred twenty-one billion, two hundred forty-three million, nine hundred thirty-two thousand, one hundred thirty".