2100102221111 has 4 divisors (see below), whose sum is σ = 2100118510800. Its totient is φ = 2100085931424.

The previous prime is 2100102221057. The next prime is 2100102221149. The reversal of 2100102221111 is 1111222010012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2100102221111 - 2¹⁴ = 2100102204727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100102221011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7949906 + ... + 8209823.

It is an arithmetic number, because the mean of its divisors is an integer number (525029627700).

Almost surely, 2^{2100102221111} is an apocalyptic number.

2100102221111 is a deficient number, since it is larger than the sum of its proper divisors (16289689).

2100102221111 is a wasteful number, since it uses less digits than its factorization.

2100102221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16289688.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2100102221111 its reverse (1111222010012), we get a palindrome (3211324231123).

The spelling of 2100102221111 in words is "two trillion, one hundred billion, one hundred two million, two hundred twenty-one thousand, one hundred eleven".