211212102211122 has 16 divisors (see below), whose sum is σ = 422439980379552. Its totient is φ = 70401404744160.

The previous prime is 211212102211111. The next prime is 211212102211133. The reversal of 211212102211122 is 221112201212112.

It is an interprime number because it is at equal distance from previous prime (211212102211111) and next prime (211212102211133).

It is a super-2 number, since 2×211212102211122² (a number of 29 digits) contains 22 as substring.

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, 657157504 + ... + 657478827.

It is an arithmetic number, because the mean of its divisors is an integer number (26402498773722).

Almost surely, 2^{211212102211122} is an apocalyptic number.

211212102211122 is an abundant number, since it is smaller than the sum of its proper divisors (211227878168430).

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

211212102211122 is a wasteful number, since it uses less digits than its factorization.

211212102211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314663113.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 211212102211122 its reverse (221112201212112), we get a palindrome (432324303423234).

The spelling of 211212102211122 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred two million, two hundred eleven thousand, one hundred twenty-two".