2100123020122 has 8 divisors (see below), whose sum is σ = 3170249400276. Its totient is φ = 1043373220032.

The previous prime is 2100123020117. The next prime is 2100123020137. The reversal of 2100123020122 is 2210203210012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1882331864361 + 217791155761 = 1371981^2 + 466681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2100123020096 and 2100123020105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3344144623 + ... + 3344145250.

Almost surely, 2^{2100123020122} is an apocalyptic number.

2100123020122 is a deficient number, since it is larger than the sum of its proper divisors (1070126380154).

2100123020122 is a wasteful number, since it uses less digits than its factorization.

2100123020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6688290032.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2100123020122 its reverse (2210203210012), we get a palindrome (4310326230134).

The spelling of 2100123020122 in words is "two trillion, one hundred billion, one hundred twenty-three million, twenty thousand, one hundred twenty-two".