121933400402 has 16 divisors (see below), whose sum is σ = 199534339872. Its totient is φ = 55422340320.

The previous prime is 121933400357. The next prime is 121933400417. The reversal of 121933400402 is 204004339121.

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, 691478 + ... + 849710.

It is an arithmetic number, because the mean of its divisors is an integer number (12470896242).

Almost surely, 2^121933400402 is an apocalyptic number.

121933400402 is a deficient number, since it is larger than the sum of its proper divisors (77600939470).

121933400402 is a wasteful number, since it uses less digits than its factorization.

121933400402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193273.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 121933400402 its reverse (204004339121), we get a palindrome (325937739523).

The spelling of 121933400402 in words is "one hundred twenty-one billion, nine hundred thirty-three million, four hundred thousand, four hundred two".