21622207611572 has 12 divisors (see below), whose sum is σ = 37840295114496. Its totient is φ = 10810694721720.

The previous prime is 21622207611569. The next prime is 21622207611659. The reversal of 21622207611572 is 27511670222612.

It is a super-2 number, since 2×21622207611572² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 102152078 + ... + 102363525.

It is an arithmetic number, because the mean of its divisors is an integer number (3153357926208).

Almost surely, 2^{21622207611572} is an apocalyptic number.

It is an amenable number.

21622207611572 is a deficient number, since it is larger than the sum of its proper divisors (16218087502924).

21622207611572 is a wasteful number, since it uses less digits than its factorization.

21622207611572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204542038 (or 204542036 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 21622207611572 in words is "twenty-one trillion, six hundred twenty-two billion, two hundred seven million, six hundred eleven thousand, five hundred seventy-two".