20112212020212 has 72 divisors (see below), whose sum is σ = 57631484761760. Its totient is φ = 5862669088320.

The previous prime is 20112212020183. The next prime is 20112212020249. The reversal of 20112212020212 is 21202021221102.

It is a happy number.

20112212020212 is a `hidden beast` number, since 20 + 11 + 221 + 202 + 0 + 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, 1130907214 + ... + 1130924997.

Almost surely, 2^{20112212020212} is an apocalyptic number.

It is an amenable number.

20112212020212 is an abundant number, since it is smaller than the sum of its proper divisors (37519272741548).

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

20112212020212 is a wasteful number, since it uses less digits than its factorization.

20112212020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261832253 (or 2261832248 counting only the distinct ones).

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

Adding to 20112212020212 its reverse (21202021221102), we get a palindrome (41314233241314).

The spelling of 20112212020212 in words is "twenty trillion, one hundred twelve billion, two hundred twelve million, twenty thousand, two hundred twelve".