21113010025422 has 64 divisors (see below), whose sum is σ = 48760035609600. Its totient is φ = 5969631340800.

The previous prime is 21113010025409. The next prime is 21113010025469. The reversal of 21113010025422 is 22452001031112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21113010025392 and 21113010025401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7428954 + ... + 9869922.

It is an arithmetic number, because the mean of its divisors is an integer number (761875556400).

Almost surely, 2^{21113010025422} is an apocalyptic number.

21113010025422 is an abundant number, since it is smaller than the sum of its proper divisors (27647025584178).

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

21113010025422 is a wasteful number, since it uses less digits than its factorization.

21113010025422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443121.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 21113010025422 its reverse (22452001031112), we get a palindrome (43565011056534).

The spelling of 21113010025422 in words is "twenty-one trillion, one hundred thirteen billion, ten million, twenty-five thousand, four hundred twenty-two".