212212021100 has 36 divisors (see below), whose sum is σ = 476379405600. Its totient is φ = 81957744960.

The previous prime is 212212021097. The next prime is 212212021159. The reversal of 212212021100 is 1120212212.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36585380 + ... + 36591179.

Almost surely, 2^212212021100 is an apocalyptic number.

212212021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212212021100 is an abundant number, since it is smaller than the sum of its proper divisors (264167384500).

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

212212021100 is a wasteful number, since it uses less digits than its factorization.

212212021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73176602 (or 73176595 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212212021100 its reverse (1120212212), we get a palindrome (213332233312).

The spelling of 212212021100 in words is "two hundred twelve billion, two hundred twelve million, twenty-one thousand, one hundred".