1205437421122 has 16 divisors (see below), whose sum is σ = 1982446200000. Its totient is φ = 545172701040.

The previous prime is 1205437421093. The next prime is 1205437421189. The reversal of 1205437421122 is 2211247345021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137665497 + ... + 137674252.

It is an arithmetic number, because the mean of its divisors is an integer number (123902887500).

Almost surely, 2^{1205437421122} is an apocalyptic number.

1205437421122 is a deficient number, since it is larger than the sum of its proper divisors (777008778878).

1205437421122 is a wasteful number, since it uses less digits than its factorization.

1205437421122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275339961.

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 1205437421122 in words is "one trillion, two hundred five billion, four hundred thirty-seven million, four hundred twenty-one thousand, one hundred twenty-two".