212012001101220 has 48 divisors (see below), whose sum is σ = 593652768266880. Its totient is φ = 56534708371456.

The previous prime is 212012001101203. The next prime is 212012001101237. The reversal of 212012001101220 is 22101100210212.

It is an interprime number because it is at equal distance from previous prime (212012001101203) and next prime (212012001101237).

It is a super-2 number, since 2×212012001101220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212012001101220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55164765 + ... + 58882724.

It is an arithmetic number, because the mean of its divisors is an integer number (12367766005560).

Almost surely, 2^{212012001101220} is an apocalyptic number.

212012001101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212012001101220 is an abundant number, since it is smaller than the sum of its proper divisors (381640767165660).

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

212012001101220 is a wasteful number, since it uses less digits than its factorization.

212012001101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114078484 (or 114078482 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212012001101220 its reverse (22101100210212), we get a palindrome (234113101311432).

The spelling of 212012001101220 in words is "two hundred twelve trillion, twelve billion, one million, one hundred one thousand, two hundred twenty".