211012220111022 has 48 divisors (see below), whose sum is σ = 498822457655808. Its totient is φ = 63934596871440.

The previous prime is 211012220110949. The next prime is 211012220111093. The reversal of 211012220111022 is 220111022210112.

211012220111022 is a `hidden beast` number, since 211 + 0 + 122 + 201 + 110 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 211012220110986 and 211012220111004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69341118 + ... + 72320225.

It is an arithmetic number, because the mean of its divisors is an integer number (10392134534496).

Almost surely, 2^{211012220111022} is an apocalyptic number.

211012220111022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211012220111022 is an abundant number, since it is smaller than the sum of its proper divisors (287810237544786).

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

211012220111022 is a wasteful number, since it uses less digits than its factorization.

211012220111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141668885 (or 141668882 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211012220111022 its reverse (220111022210112), we get a palindrome (431123242321134).

The spelling of 211012220111022 in words is "two hundred eleven trillion, twelve billion, two hundred twenty million, one hundred eleven thousand, twenty-two".