21022220000111 has 8 divisors (see below), whose sum is σ = 22934412363648. Its totient is φ = 19110207879000.

The previous prime is 21022220000021. The next prime is 21022220000189. The reversal of 21022220000111 is 11100002222012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21022220000111 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 (21022220000611) 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, 44816675 + ... + 45283316.

It is an arithmetic number, because the mean of its divisors is an integer number (2866801545456).

Almost surely, 2^{21022220000111} is an apocalyptic number.

21022220000111 is a deficient number, since it is larger than the sum of its proper divisors (1912192363537).

21022220000111 is a wasteful number, since it uses less digits than its factorization.

21022220000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90121213.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21022220000111 its reverse (11100002222012), we get a palindrome (32122222222123).

The spelling of 21022220000111 in words is "twenty-one trillion, twenty-two billion, two hundred twenty million, one hundred eleven", and thus it is an aban number.