212111202111212 has 36 divisors (see below), whose sum is σ = 381872896083168. Its totient is φ = 103087074211200.

The previous prime is 212111202111191. The next prime is 212111202111251.

It is a happy number.

212111202111212 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×212111202111212² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56379623 + ... + 60024030.

Almost surely, 2^{212111202111212} is an apocalyptic number.

It is an amenable number.

212111202111212 is a deficient number, since it is larger than the sum of its proper divisors (169761693971956).

212111202111212 is a wasteful number, since it uses less digits than its factorization.

212111202111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116404010 (or 116403967 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

It can be divided in two parts, 21211120 and 2111212, that added together give a palindrome (23322332).

The spelling of 212111202111212 in words is "two hundred twelve trillion, one hundred eleven billion, two hundred two million, one hundred eleven thousand, two hundred twelve".