121420131122402 has 96 divisors (see below), whose sum is σ = 213909405050880. Its totient is φ = 50632522274880.

The previous prime is 121420131122321. The next prime is 121420131122419. The reversal of 121420131122402 is 204221131024121.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8876382599 + ... + 8876396277.

It is an arithmetic number, because the mean of its divisors is an integer number (2228222969280).

Almost surely, 2^{121420131122402} is an apocalyptic number.

121420131122402 is a deficient number, since it is larger than the sum of its proper divisors (92489273928478).

121420131122402 is a wasteful number, since it uses less digits than its factorization.

121420131122402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15648 (or 15595 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 121420131122402 its reverse (204221131024121), we get a palindrome (325641262146523).

The spelling of 121420131122402 in words is "one hundred twenty-one trillion, four hundred twenty billion, one hundred thirty-one million, one hundred twenty-two thousand, four hundred two".