121406024402 has 32 divisors (see below), whose sum is σ = 207002208000. Its totient is φ = 52939692288.

The previous prime is 121406024387. The next prime is 121406024413. The reversal of 121406024402 is 204420604121.

It is a super-2 number, since 2×121406024402² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153527 + ... + 516122.

It is an arithmetic number, because the mean of its divisors is an integer number (6468819000).

Almost surely, 2^121406024402 is an apocalyptic number.

121406024402 is a deficient number, since it is larger than the sum of its proper divisors (85596183598).

121406024402 is a wasteful number, since it uses less digits than its factorization.

121406024402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670050.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 121406024402 its reverse (204420604121), we get a palindrome (325826628523).

The spelling of 121406024402 in words is "one hundred twenty-one billion, four hundred six million, twenty-four thousand, four hundred two".