211211201122192 has 40 divisors (see below), whose sum is σ = 412978686567480. Its totient is φ = 104636068669440.

The previous prime is 211211201122139. The next prime is 211211201122247. The reversal of 211211201122192 is 291221102112112.

It can be written as a sum of positive squares in 4 ways, for example, as 20166170936976 + 191045030185216 = 4490676^2 + 13821904^2 .

It is a super-2 number, since 2×211211201122192² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211211201122192.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373772538 + ... + 374337190.

It is an arithmetic number, because the mean of its divisors is an integer number (10324467164187).

Almost surely, 2^{211211201122192} is an apocalyptic number.

It is an amenable number.

211211201122192 is a deficient number, since it is larger than the sum of its proper divisors (201767485445288).

211211201122192 is a wasteful number, since it uses less digits than its factorization.

211211201122192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779251 (or 779245 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 28.

The spelling of 211211201122192 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred one million, one hundred twenty-two thousand, one hundred ninety-two".