102202312212 has 144 divisors (see below), whose sum is σ = 346868575872. Its totient is φ = 24504042240.

The previous prime is 102202312153. The next prime is 102202312217. The reversal of 102202312212 is 212213202201.

102202312212 is a `hidden beast` number, since 1 + 0 + 220 + 231 + 2 + 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 not an unprimeable number, because it can be changed into a prime (102202312217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1382023 + ... + 1454094.

Almost surely, 2^102202312212 is an apocalyptic number.

102202312212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102202312212 is an abundant number, since it is smaller than the sum of its proper divisors (244666263660).

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

102202312212 is a wasteful number, since it uses less digits than its factorization.

102202312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836158 (or 2836153 counting only the distinct ones).

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

Adding to 102202312212 its reverse (212213202201), we get a palindrome (314415514413).

It can be divided in two parts, 102202 and 312212, that added together give a palindrome (414414).

The spelling of 102202312212 in words is "one hundred two billion, two hundred two million, three hundred twelve thousand, two hundred twelve".