20022100111 has 8 divisors (see below), whose sum is σ = 21927724560. Its totient is φ = 18168684672.

The previous prime is 20022100061. The next prime is 20022100127. The reversal of 20022100111 is 11100122002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20022100111 - 2¹⁹ = 20021575823 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 (20022100171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13051450 + ... + 13052983.

It is an arithmetic number, because the mean of its divisors is an integer number (2740965570).

Almost surely, 2^20022100111 is an apocalyptic number.

20022100111 is a deficient number, since it is larger than the sum of its proper divisors (1905624449).

20022100111 is a wasteful number, since it uses less digits than its factorization.

20022100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26104505.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20022100111 its reverse (11100122002), we get a palindrome (31122222113).

The spelling of 20022100111 in words is "twenty billion, twenty-two million, one hundred thousand, one hundred eleven".