22121041030402 has 4 divisors (see below), whose sum is σ = 33181561545606. Its totient is φ = 11060520515200.

The previous prime is 22121041030369. The next prime is 22121041030471. The reversal of 22121041030402 is 20403014012122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19732065842241 + 2388975188161 = 4442079^2 + 1545631^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530260257599 + ... + 5530260257602.

Almost surely, 2^{22121041030402} is an apocalyptic number.

22121041030402 is a deficient number, since it is larger than the sum of its proper divisors (11060520515204).

22121041030402 is a wasteful number, since it uses less digits than its factorization.

22121041030402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11060520515203.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 22121041030402 its reverse (20403014012122), we get a palindrome (42524055042524).

The spelling of 22121041030402 in words is "twenty-two trillion, one hundred twenty-one billion, forty-one million, thirty thousand, four hundred two".