220210213212 has 72 divisors (see below), whose sum is σ = 628185907440. Its totient is φ = 64429317120.

The previous prime is 220210213147. The next prime is 220210213247. The reversal of 220210213212 is 212312012022.

220210213212 is a `hidden beast` number, since 220 + 21 + 0 + 213 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 9576213 + ... + 9599180.

It is an arithmetic number, because the mean of its divisors is an integer number (8724804270).

Almost surely, 2^220210213212 is an apocalyptic number.

220210213212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220210213212 is an abundant number, since it is smaller than the sum of its proper divisors (407975694228).

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

220210213212 is a wasteful number, since it uses less digits than its factorization.

220210213212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19175443 (or 19175438 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 220210213212 its reverse (212312012022), we get a palindrome (432522225234).

The spelling of 220210213212 in words is "two hundred twenty billion, two hundred ten million, two hundred thirteen thousand, two hundred twelve".