122002244451 has 12 divisors (see below), whose sum is σ = 176242123512. Its totient is φ = 81327140736.

The previous prime is 122002244447. The next prime is 122002244477. The reversal of 122002244451 is 154442200221.

It is a happy number.

122002244451 is a `hidden beast` number, since 1 + 2 + 200 + 2 + 2 + 4 + 4 + 451 = 666.

It is not a de Polignac number, because 122002244451 - 2² = 122002244447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122002244431) 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, 539406 + ... + 731411.

It is an arithmetic number, because the mean of its divisors is an integer number (14686843626).

Almost surely, 2^122002244451 is an apocalyptic number.

122002244451 is a deficient number, since it is larger than the sum of its proper divisors (54239879061).

122002244451 is a wasteful number, since it uses less digits than its factorization.

122002244451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281490 (or 1281487 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 122002244451 its reverse (154442200221), we get a palindrome (276444444672).

The spelling of 122002244451 in words is "one hundred twenty-two billion, two million, two hundred forty-four thousand, four hundred fifty-one".