22021620363044 has 48 divisors (see below), whose sum is σ = 39053197658160. Its totient is φ = 10864292659200.

The previous prime is 22021620363011. The next prime is 22021620363187. The reversal of 22021620363044 is 44036302612022.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 957192203044 + 21064428160000 = 978362^2 + 4589600^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22021620362995 and 22021620363013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212904812 + ... + 213008220.

It is an arithmetic number, because the mean of its divisors is an integer number (813608284545).

Almost surely, 2^{22021620363044} is an apocalyptic number.

It is an amenable number.

22021620363044 is a deficient number, since it is larger than the sum of its proper divisors (17031577295116).

22021620363044 is a wasteful number, since it uses less digits than its factorization.

22021620363044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105168 (or 105166 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 22021620363044 its reverse (44036302612022), we get a palindrome (66057922975066).

The spelling of 22021620363044 in words is "twenty-two trillion, twenty-one billion, six hundred twenty million, three hundred sixty-three thousand, forty-four".