2100122110154 has 32 divisors (see below), whose sum is σ = 3206358946560. Its totient is φ = 1031385700800.

The previous prime is 2100122110153. The next prime is 2100122110157. The reversal of 2100122110154 is 4510112210012.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2100122110153) 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, 340759877 + ... + 340766039.

It is an arithmetic number, because the mean of its divisors is an integer number (100198717080).

Almost surely, 2^{2100122110154} is an apocalyptic number.

2100122110154 is a deficient number, since it is larger than the sum of its proper divisors (1106236836406).

2100122110154 is a wasteful number, since it uses less digits than its factorization.

2100122110154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9726.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 2100122110154 its reverse (4510112210012), we get a palindrome (6610234320166).

The spelling of 2100122110154 in words is "two trillion, one hundred billion, one hundred twenty-two million, one hundred ten thousand, one hundred fifty-four".