2100001111210 has 32 divisors (see below), whose sum is σ = 4041982369872. Its totient is φ = 782761036800.

The previous prime is 2100001111099. The next prime is 2100001111211. The reversal of 2100001111210 is 121111000012.

It can be written as a sum of positive squares in 8 ways, for example, as 1623858330249 + 476142780961 = 1274307^2 + 690031^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (2100001111211) 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, 61136037 + ... + 61170376.

Almost surely, 2^{2100001111210} is an apocalyptic number.

2100001111210 is a deficient number, since it is larger than the sum of its proper divisors (1941981258662).

2100001111210 is a wasteful number, since it uses less digits than its factorization.

2100001111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122306538.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 2100001111210 its reverse (121111000012), we get a palindrome (2221112111222).

The spelling of 2100001111210 in words is "two trillion, one hundred billion, one million, one hundred eleven thousand, two hundred ten".