211101222222012 has 24 divisors (see below), whose sum is σ = 521544196078416. Its totient is φ = 66227834422528.

The previous prime is 211101222221983. The next prime is 211101222222041. The reversal of 211101222222012 is 210222222101112.

It is an interprime number because it is at equal distance from previous prime (211101222221983) and next prime (211101222222041).

It is a self number, because there is not a number n which added to its sum of digits gives 211101222222012.

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, 517404956223 + ... + 517404956630.

It is an arithmetic number, because the mean of its divisors is an integer number (21731008169934).

Almost surely, 2^{211101222222012} is an apocalyptic number.

It is an amenable number.

211101222222012 is an abundant number, since it is smaller than the sum of its proper divisors (310442973856404).

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

211101222222012 is a wasteful number, since it uses less digits than its factorization.

211101222222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034809912877 (or 1034809912875 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 211101222222012 its reverse (210222222101112), we get a palindrome (421323444323124).

The spelling of 211101222222012 in words is "two hundred eleven trillion, one hundred one billion, two hundred twenty-two million, two hundred twenty-two thousand, twelve".