211122112110 has 128 divisors (see below), whose sum is σ = 640477200384. Its totient is φ = 43340520960.

The previous prime is 211122112093. The next prime is 211122112127. The reversal of 211122112110 is 11211221112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (211122112093) and next prime (211122112127).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 211122112110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 944046 + ... + 1146065.

It is an arithmetic number, because the mean of its divisors is an integer number (5003728128).

Almost surely, 2^211122112110 is an apocalyptic number.

211122112110 is an abundant number, since it is smaller than the sum of its proper divisors (429355088274).

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

211122112110 is a wasteful number, since it uses less digits than its factorization.

211122112110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090178.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211122112110 its reverse (11211221112), we get a palindrome (222333333222).

The spelling of 211122112110 in words is "two hundred eleven billion, one hundred twenty-two million, one hundred twelve thousand, one hundred ten".