21022212000100 has 18 divisors (see below), whose sum is σ = 45618200040434. Its totient is φ = 8408884800000.

The previous prime is 21022212000029. The next prime is 21022212000107. The reversal of 21022212000100 is 100021222012.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 484148772864 + 20538063227236 = 695808^2 + 4531894^2 .

It is not an unprimeable number, because it can be changed into a prime (21022212000107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105111059901 + ... + 105111060100.

Almost surely, 2^{21022212000100} is an apocalyptic number.

21022212000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21022212000100 is an abundant number, since it is smaller than the sum of its proper divisors (24595988040334).

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

21022212000100 is a wasteful number, since it uses less digits than its factorization.

21022212000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210222120015 (or 210222120008 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21022212000100 its reverse (100021222012), we get a palindrome (21122233222112).

The spelling of 21022212000100 in words is "twenty-one trillion, twenty-two billion, two hundred twelve million, one hundred", and thus it is an aban number.