201220120100212 has 24 divisors (see below), whose sum is σ = 352604158603200. Its totient is φ = 100476142655616.

The previous prime is 201220120100159. The next prime is 201220120100249. The reversal of 201220120100212 is 212001021022102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3379953 + ... + 20343655.

It is an arithmetic number, because the mean of its divisors is an integer number (14691839941800).

Almost surely, 2^{201220120100212} is an apocalyptic number.

It is an amenable number.

201220120100212 is a deficient number, since it is larger than the sum of its proper divisors (151384038502988).

201220120100212 is a wasteful number, since it uses less digits than its factorization.

201220120100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16967655 (or 16967653 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201220120100212 its reverse (212001021022102), we get a palindrome (413221141122314).

The spelling of 201220120100212 in words is "two hundred one trillion, two hundred twenty billion, one hundred twenty million, one hundred thousand, two hundred twelve".