211200021021122 has 32 divisors (see below), whose sum is σ = 378154204065792. Its totient is φ = 86497442778384.

The previous prime is 211200021021107. The next prime is 211200021021167. The reversal of 211200021021122 is 221120120002112.

It is a self number, because there is not a number n which added to its sum of digits gives 211200021021122.

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, 308171678 + ... + 308856249.

It is an arithmetic number, because the mean of its divisors is an integer number (11817318877056).

Almost surely, 2^{211200021021122} is an apocalyptic number.

211200021021122 is a deficient number, since it is larger than the sum of its proper divisors (166954183044670).

211200021021122 is a wasteful number, since it uses less digits than its factorization.

211200021021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617029022.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211200021021122 its reverse (221120120002112), we get a palindrome (432320141023234).

The spelling of 211200021021122 in words is "two hundred eleven trillion, two hundred billion, twenty-one million, twenty-one thousand, one hundred twenty-two".