1221610924534 has 192 divisors, whose sum is σ = 2596362789888. Its totient is φ = 418673629440.

The previous prime is 1221610924493. The next prime is 1221610924543. The reversal of 1221610924534 is 4354290161221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 140297809 + ... + 140306515.

It is an arithmetic number, because the mean of its divisors is an integer number (13522722864).

Almost surely, 2^{1221610924534} is an apocalyptic number.

1221610924534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1221610924534 is an abundant number, since it is smaller than the sum of its proper divisors (1374751865354).

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

1221610924534 is a wasteful number, since it uses less digits than its factorization.

1221610924534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9051 (or 9040 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 1221610924534 in words is "one trillion, two hundred twenty-one billion, six hundred ten million, nine hundred twenty-four thousand, five hundred thirty-four".