122002231653 has 24 divisors (see below), whose sum is σ = 185514619680. Its totient is φ = 77048163360.

The previous prime is 122002231601. The next prime is 122002231669. The reversal of 122002231653 is 356132200221.

It is a happy number.

122002231653 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 0 + 2 + 2 + 3 + 1 + 653 = 666.

It is not a de Polignac number, because 122002231653 - 2¹⁰ = 122002230629 is a prime.

It is a super-2 number, since 2×122002231653² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002235653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3748018 + ... + 3780428.

It is an arithmetic number, because the mean of its divisors is an integer number (7729775820).

Almost surely, 2^122002231653 is an apocalyptic number.

It is an amenable number.

122002231653 is a deficient number, since it is larger than the sum of its proper divisors (63512388027).

122002231653 is a wasteful number, since it uses less digits than its factorization.

122002231653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54449 (or 54446 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 122002231653 its reverse (356132200221), we get a palindrome (478134431874).

The spelling of 122002231653 in words is "one hundred twenty-two billion, two million, two hundred thirty-one thousand, six hundred fifty-three".