20221021021104 has 60 divisors (see below), whose sum is σ = 56616745970200. Its totient is φ = 6737246917632.

The previous prime is 20221021021093. The next prime is 20221021021109. The reversal of 20221021021104 is 40112012012202.

20221021021104 is a `hidden beast` number, since 20 + 221 + 0 + 210 + 211 + 0 + 4 = 666.

It is a super-2 number, since 2×20221021021104² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20221021021109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31908289 + ... + 32535840.

Almost surely, 2^{20221021021104} is an apocalyptic number.

20221021021104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20221021021104 is an abundant number, since it is smaller than the sum of its proper divisors (36395724949096).

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

20221021021104 is a wasteful number, since it uses less digits than its factorization.

20221021021104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64446322 (or 64446313 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20221021021104 its reverse (40112012012202), we get a palindrome (60333033033306).

The spelling of 20221021021104 in words is "twenty trillion, two hundred twenty-one billion, twenty-one million, twenty-one thousand, one hundred four".