21022060639104 has 768 divisors, whose sum is σ = 72370162800000. Its totient is φ = 5852557541376.

The previous prime is 21022060639091. The next prime is 21022060639127. The reversal of 21022060639104 is 40193606022012.

It is a happy number.

21022060639104 is a `hidden beast` number, since 2 + 1 + 0 + 2 + 2 + 0 + 6 + 0 + 639 + 10 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3120385624 + ... + 3120392360.

Almost surely, 2^{21022060639104} is an apocalyptic number.

21022060639104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21022060639104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36185081400000).

21022060639104 is an abundant number, since it is smaller than the sum of its proper divisors (51348102160896).

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

21022060639104 is a wasteful number, since it uses less digits than its factorization.

21022060639104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6980 (or 6951 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 21022060639104 in words is "twenty-one trillion, twenty-two billion, sixty million, six hundred thirty-nine thousand, one hundred four".