122045132421 has 12 divisors (see below), whose sum is σ = 176542541760. Its totient is φ = 81245670120.

The previous prime is 122045132411. The next prime is 122045132423. The reversal of 122045132421 is 124231540221.

122045132421 is a `hidden beast` number, since 1 + 2 + 204 + 5 + 1 + 32 + 421 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-122045132421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122045132423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9806061 + ... + 9818498.

It is an arithmetic number, because the mean of its divisors is an integer number (14711878480).

Almost surely, 2^122045132421 is an apocalyptic number.

It is an amenable number.

122045132421 is a deficient number, since it is larger than the sum of its proper divisors (54497409339).

122045132421 is a wasteful number, since it uses less digits than its factorization.

122045132421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19625256 (or 19625253 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 122045132421 its reverse (124231540221), we get a palindrome (246276672642).

The spelling of 122045132421 in words is "one hundred twenty-two billion, forty-five million, one hundred thirty-two thousand, four hundred twenty-one".