210211111202122 has 32 divisors (see below), whose sum is σ = 317476778400000. Its totient is φ = 104388226856448.

The previous prime is 210211111202107. The next prime is 210211111202231. The reversal of 210211111202122 is 221202111112012.

It is a happy number.

It is a super-2 number, since 2×210211111202122² (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 210211111202122.

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, 451835379 + ... + 452300377.

It is an arithmetic number, because the mean of its divisors is an integer number (9921149325000).

Almost surely, 2^{210211111202122} is an apocalyptic number.

210211111202122 is a deficient number, since it is larger than the sum of its proper divisors (107265667197878).

210211111202122 is a wasteful number, since it uses less digits than its factorization.

210211111202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467910.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 210211111202122 its reverse (221202111112012), we get a palindrome (431413222314134).

The spelling of 210211111202122 in words is "two hundred ten trillion, two hundred eleven billion, one hundred eleven million, two hundred two thousand, one hundred twenty-two".