220120120021212 has 36 divisors (see below), whose sum is σ = 559210801858800. Its totient is φ = 73004662919232.

The previous prime is 220120120021211. The next prime is 220120120021267. The reversal of 220120120021212 is 212120021021022.

It is a happy number.

220120120021212 is a `hidden beast` number, since 220 + 1 + 20 + 1 + 200 + 212 + 12 = 666.

220120120021212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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 (220120120021211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15362926953 + ... + 15362941280.

Almost surely, 2^{220120120021212} is an apocalyptic number.

It is an amenable number.

220120120021212 is an abundant number, since it is smaller than the sum of its proper divisors (339090681837588).

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

220120120021212 is a wasteful number, since it uses less digits than its factorization.

220120120021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30725868442 (or 30725868437 counting only the distinct ones).

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

Adding to 220120120021212 its reverse (212120021021022), we get a palindrome (432240141042234).

The spelling of 220120120021212 in words is "two hundred twenty trillion, one hundred twenty billion, one hundred twenty million, twenty-one thousand, two hundred twelve".