2123201244402 has 40 divisors (see below), whose sum is σ = 5437192607616. Its totient is φ = 606628926648.

The previous prime is 2123201244383. The next prime is 2123201244443. The reversal of 2123201244402 is 2044421023212.

It is a happy number.

2123201244402 is a `hidden beast` number, since 2 + 1 + 232 + 0 + 1 + 24 + 4 + 402 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 936154618 + ... + 936156885.

Almost surely, 2^{2123201244402} is an apocalyptic number.

2123201244402 is an abundant number, since it is smaller than the sum of its proper divisors (3313991363214).

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

2123201244402 is a wasteful number, since it uses less digits than its factorization.

2123201244402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872311524 (or 1872311515 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 2123201244402 its reverse (2044421023212), we get a palindrome (4167622267614).

The spelling of 2123201244402 in words is "two trillion, one hundred twenty-three billion, two hundred one million, two hundred forty-four thousand, four hundred two".