1421010120402 has 48 divisors (see below), whose sum is σ = 3190835531520. Its totient is φ = 456564060000.

The previous prime is 1421010120359. The next prime is 1421010120419. The reversal of 1421010120402 is 2040210101241.

1421010120402 is a `hidden beast` number, since 1 + 42 + 101 + 0 + 120 + 402 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4932877 + ... + 5212992.

It is an arithmetic number, because the mean of its divisors is an integer number (66475740240).

Almost surely, 2^{1421010120402} is an apocalyptic number.

1421010120402 is an abundant number, since it is smaller than the sum of its proper divisors (1769825411118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421010120402 is a wasteful number, since it uses less digits than its factorization.

1421010120402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10146159 (or 10146156 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1421010120402 its reverse (2040210101241), we get a palindrome (3461220221643).

The spelling of 1421010120402 in words is "one trillion, four hundred twenty-one billion, ten million, one hundred twenty thousand, four hundred two".