2102311322122 has 32 divisors (see below), whose sum is σ = 3553018380288. Its totient is φ = 924275550000.

The previous prime is 2102311322119. The next prime is 2102311322123. The reversal of 2102311322122 is 2212231132012.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2102311322093 and 2102311322102.

It is not an unprimeable number, because it can be changed into a prime (2102311322123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452247 + ... + 2099797.

It is an arithmetic number, because the mean of its divisors is an integer number (111031824384).

Almost surely, 2^{2102311322122} is an apocalyptic number.

2102311322122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2102311322122 is a deficient number, since it is larger than the sum of its proper divisors (1450707058166).

2102311322122 is a wasteful number, since it uses less digits than its factorization.

2102311322122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649466.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2102311322122 its reverse (2212231132012), we get a palindrome (4314542454134).

The spelling of 2102311322122 in words is "two trillion, one hundred two billion, three hundred eleven million, three hundred twenty-two thousand, one hundred twenty-two".