212111010111212 has 12 divisors (see below), whose sum is σ = 393029224617960. Its totient is φ = 99816945934656.

The previous prime is 212111010111211. The next prime is 212111010111223.

212111010111212 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×212111010111212² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (212111010111211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1559639780162 + ... + 1559639780297.

It is an arithmetic number, because the mean of its divisors is an integer number (32752435384830).

Almost surely, 2^{212111010111212} is an apocalyptic number.

It is an amenable number.

212111010111212 is a deficient number, since it is larger than the sum of its proper divisors (180918214506748).

212111010111212 is a wasteful number, since it uses less digits than its factorization.

212111010111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119279560480 (or 3119279560478 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

The spelling of 212111010111212 in words is "two hundred twelve trillion, one hundred eleven billion, ten million, one hundred eleven thousand, two hundred twelve".