212102202120120 has 128 divisors (see below), whose sum is σ = 761392520481600. Its totient is φ = 52209772826112.

The previous prime is 212102202120119. The next prime is 212102202120131. The reversal of 212102202120120 is 21021202201212.

It is a happy number.

212102202120120 is a `hidden beast` number, since 2 + 1 + 210 + 220 + 212 + 0 + 1 + 20 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 212102202120093 and 212102202120102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7553483187 + ... + 7553511266.

Almost surely, 2^{212102202120120} is an apocalyptic number.

212102202120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212102202120120 is an abundant number, since it is smaller than the sum of its proper divisors (549290318361480).

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

212102202120120 is a wasteful number, since it uses less digits than its factorization.

212102202120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15106994486 (or 15106994476 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212102202120120 its reverse (21021202201212), we get a palindrome (233123404321332).

The spelling of 212102202120120 in words is "two hundred twelve trillion, one hundred two billion, two hundred two million, one hundred twenty thousand, one hundred twenty".