212222313100 has 72 divisors (see below), whose sum is σ = 526404919040. Its totient is φ = 72748998720.

The previous prime is 212222313089. The next prime is 212222313167. The reversal of 212222313100 is 1313222212.

It is a super-2 number, since 2×212222313100² (a number of 23 digits) contains 22 as substring.

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, 4441537 + ... + 4489063.

Almost surely, 2^212222313100 is an apocalyptic number.

212222313100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212222313100 is an abundant number, since it is smaller than the sum of its proper divisors (314182605940).

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

212222313100 is a wasteful number, since it uses less digits than its factorization.

212222313100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53927 (or 53920 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212222313100 its reverse (1313222212), we get a palindrome (213535535312).

The spelling of 212222313100 in words is "two hundred twelve billion, two hundred twenty-two million, three hundred thirteen thousand, one hundred".