212323132100 has 18 divisors (see below), whose sum is σ = 460741196874. Its totient is φ = 84929252800.

The previous prime is 212323132081. The next prime is 212323132157. The reversal of 212323132100 is 1231323212.

It can be written as a sum of positive squares in 3 ways, for example, as 25809707716 + 186513424384 = 160654^2 + 431872^2 .

It is a super-2 number, since 2×212323132100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1061615561 + ... + 1061615760.

Almost surely, 2^212323132100 is an apocalyptic number.

212323132100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212323132100 is an abundant number, since it is smaller than the sum of its proper divisors (248418064774).

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

212323132100 is a wasteful number, since it uses less digits than its factorization.

212323132100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123231335 (or 2123231328 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212323132100 its reverse (1231323212), we get a palindrome (213554455312).

The spelling of 212323132100 in words is "two hundred twelve billion, three hundred twenty-three million, one hundred thirty-two thousand, one hundred".