212220000011100 has 72 divisors (see below), whose sum is σ = 614059791907968. Its totient is φ = 56588627480000.

The previous prime is 212220000011087. The next prime is 212220000011119. The reversal of 212220000011100 is 1110000022212.

It is a super-2 number, since 2×212220000011100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16033776 + ... + 26105975.

It is an arithmetic number, because the mean of its divisors is an integer number (8528608220944).

Almost surely, 2^{212220000011100} is an apocalyptic number.

212220000011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212220000011100 is an abundant number, since it is smaller than the sum of its proper divisors (401839791896868).

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

212220000011100 is a wasteful number, since it uses less digits than its factorization.

212220000011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42156555 (or 42156548 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 212220000011100 its reverse (1110000022212), we get a palindrome (213330000033312).

The spelling of 212220000011100 in words is "two hundred twelve trillion, two hundred twenty billion, eleven thousand, one hundred".