2100002121222 has 16 divisors (see below), whose sum is σ = 4200964734960. Its totient is φ = 699840624992.

The previous prime is 2100002121211. The next prime is 2100002121251. The reversal of 2100002121222 is 2221212000012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39992097 + ... + 40044572.

It is an arithmetic number, because the mean of its divisors is an integer number (262560295935).

Almost surely, 2^{2100002121222} is an apocalyptic number.

2100002121222 is an abundant number, since it is smaller than the sum of its proper divisors (2100962613738).

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

2100002121222 is a wasteful number, since it uses less digits than its factorization.

2100002121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80041047.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2100002121222 its reverse (2221212000012), we get a palindrome (4321214121234).

The spelling of 2100002121222 in words is "two trillion, one hundred billion, two million, one hundred twenty-one thousand, two hundred twenty-two".