2100012121122 has 16 divisors (see below), whose sum is σ = 4200050428992. Its totient is φ = 699999675920.

The previous prime is 2100012121093. The next prime is 2100012121133. The reversal of 2100012121122 is 2211212100012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41908 + ... + 2049824.

It is an arithmetic number, because the mean of its divisors is an integer number (262503151812).

Almost surely, 2^{2100012121122} is an apocalyptic number.

2100012121122 is an abundant number, since it is smaller than the sum of its proper divisors (2100038307870).

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

2100012121122 is a wasteful number, since it uses less digits than its factorization.

2100012121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182233.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2100012121122 its reverse (2211212100012), we get a palindrome (4311224221134).

The spelling of 2100012121122 in words is "two trillion, one hundred billion, twelve million, one hundred twenty-one thousand, one hundred twenty-two".