211211012211122 has 32 divisors (see below), whose sum is σ = 394995450599424. Its totient is φ = 82289290640400.

The previous prime is 211211012211109. The next prime is 211211012211137. The reversal of 211211012211122 is 221112210112112.

It is a happy number.

It is a super-2 number, since 2×211211012211122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211211012211094 and 211211012211103.

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, 12028343 + ... + 23813925.

It is an arithmetic number, because the mean of its divisors is an integer number (12343607831232).

Almost surely, 2^{211211012211122} is an apocalyptic number.

211211012211122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211211012211122 is a deficient number, since it is larger than the sum of its proper divisors (183784438388302).

211211012211122 is a wasteful number, since it uses less digits than its factorization.

211211012211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11901974.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 211211012211122 its reverse (221112210112112), we get a palindrome (432323222323234).

The spelling of 211211012211122 in words is "two hundred eleven trillion, two hundred eleven billion, twelve million, two hundred eleven thousand, one hundred twenty-two".