201220212222012 has 24 divisors (see below), whose sum is σ = 469515185706112. Its totient is φ = 67073210190000.

The previous prime is 201220212221989. The next prime is 201220212222019. The reversal of 201220212222012 is 210222212022102.

It is a self number, because there is not a number n which added to its sum of digits gives 201220212222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201220212222019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19879864 + ... + 28242687.

Almost surely, 2^{201220212222012} is an apocalyptic number.

It is an amenable number.

201220212222012 is an abundant number, since it is smaller than the sum of its proper divisors (268294973484100).

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

201220212222012 is a wasteful number, since it uses less digits than its factorization.

201220212222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48471009 (or 48471007 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 201220212222012 its reverse (210222212022102), we get a palindrome (411442424244114).

The spelling of 201220212222012 in words is "two hundred one trillion, two hundred twenty billion, two hundred twelve million, two hundred twenty-two thousand, twelve".