21622042364036 has 6 divisors (see below), whose sum is σ = 37838574137070. Its totient is φ = 10811021182016.

The previous prime is 21622042364011. The next prime is 21622042364071. The reversal of 21622042364036 is 63046324022612.

It can be written as a sum of positive squares in only one way, i.e., 21402836742400 + 219205621636 = 4626320^2 + 468194^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21622042363984 and 21622042364002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2702755295501 + ... + 2702755295508.

It is an arithmetic number, because the mean of its divisors is an integer number (6306429022845).

Almost surely, 2^{21622042364036} is an apocalyptic number.

It is an amenable number.

21622042364036 is a deficient number, since it is larger than the sum of its proper divisors (16216531773034).

21622042364036 is a wasteful number, since it uses less digits than its factorization.

21622042364036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5405510591013 (or 5405510591011 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 41.

Adding to 21622042364036 its reverse (63046324022612), we get a palindrome (84668366386648).

The spelling of 21622042364036 in words is "twenty-one trillion, six hundred twenty-two billion, forty-two million, three hundred sixty-four thousand, thirty-six".