210122111101122 has 96 divisors (see below), whose sum is σ = 510156772931520. Its totient is φ = 61942569298560.

The previous prime is 210122111101087. The next prime is 210122111101163. The reversal of 210122111101122 is 221101111221012.

It is a happy number.

210122111101122 is a `hidden beast` number, since 210 + 1 + 221 + 1 + 110 + 1 + 122 = 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 = 210122111101095 and 210122111101104.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43639113 + ... + 48214275.

It is an arithmetic number, because the mean of its divisors is an integer number (5314133051370).

Almost surely, 2^{210122111101122} is an apocalyptic number.

210122111101122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 210122111101122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255078386465760).

210122111101122 is an abundant number, since it is smaller than the sum of its proper divisors (300034661830398).

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

210122111101122 is a wasteful number, since it uses less digits than its factorization.

210122111101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4581488 (or 4581485 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 210122111101122 its reverse (221101111221012), we get a palindrome (431223222322134).

The spelling of 210122111101122 in words is "two hundred ten trillion, one hundred twenty-two billion, one hundred eleven million, one hundred one thousand, one hundred twenty-two".