2102120021122 has 32 divisors (see below), whose sum is σ = 3554693849088. Its totient is φ = 923670930000.

The previous prime is 2102120021101. The next prime is 2102120021161. The reversal of 2102120021122 is 2211200212012.

It is a happy number.

It is a super-2 number, since 2×2102120021122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2102120021096 and 2102120021105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1070404 + ... + 2313007.

It is an arithmetic number, because the mean of its divisors is an integer number (111084182784).

Almost surely, 2^{2102120021122} is an apocalyptic number.

2102120021122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2102120021122 is a deficient number, since it is larger than the sum of its proper divisors (1452573827966).

2102120021122 is a wasteful number, since it uses less digits than its factorization.

2102120021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384366.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2102120021122 its reverse (2211200212012), we get a palindrome (4313320233134).

The spelling of 2102120021122 in words is "two trillion, one hundred two billion, one hundred twenty million, twenty-one thousand, one hundred twenty-two".