21622013625126 has 8 divisors (see below), whose sum is σ = 43244027250264. Its totient is φ = 7207337875040.

The previous prime is 21622013625103. The next prime is 21622013625143. The reversal of 21622013625126 is 62152631022612.

It is a sphenic number, since it is the product of 3 distinct primes.

21622013625126 is an admirable number.

It is a super-2 number, since 2×21622013625126² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1801834468755 + ... + 1801834468766.

It is an arithmetic number, because the mean of its divisors is an integer number (5405503406283).

Almost surely, 2^{21622013625126} is an apocalyptic number.

21622013625126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21622013625126 is a wasteful number, since it uses less digits than its factorization.

21622013625126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603668937526.

The product of its (nonzero) digits is 103680, while the sum is 39.

Adding to 21622013625126 its reverse (62152631022612), we get a palindrome (83774644647738).

The spelling of 21622013625126 in words is "twenty-one trillion, six hundred twenty-two billion, thirteen million, six hundred twenty-five thousand, one hundred twenty-six".