2111202221101 has 4 divisors (see below), whose sum is σ = 2111217023104. Its totient is φ = 2111187419100.

The previous prime is 2111202221041. The next prime is 2111202221159. The reversal of 2111202221101 is 1011222021112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2111202221101 - 2³¹ = 2109054737453 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 (2111202225101) 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, 7184955 + ... + 7473016.

It is an arithmetic number, because the mean of its divisors is an integer number (527804255776).

Almost surely, 2^{2111202221101} is an apocalyptic number.

It is an amenable number.

2111202221101 is a deficient number, since it is larger than the sum of its proper divisors (14802003).

2111202221101 is a wasteful number, since it uses less digits than its factorization.

2111202221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14802002.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2111202221101 its reverse (1011222021112), we get a palindrome (3122424242213).

The spelling of 2111202221101 in words is "two trillion, one hundred eleven billion, two hundred two million, two hundred twenty-one thousand, one hundred one".