22000020221111 has 4 divisors (see below), whose sum is σ = 22013592104424. Its totient is φ = 21986448337800.

The previous prime is 22000020221083. The next prime is 22000020221183. The reversal of 22000020221111 is 11112202000022.

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 22000020221111 - 2⁴² = 17601973710007 is a prime.

It is a super-4 number, since 4×22000020221111⁴ (a number of 54 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000020227111) 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, 6785939225 + ... + 6785942466.

It is an arithmetic number, because the mean of its divisors is an integer number (5503398026106).

Almost surely, 2^{22000020221111} is an apocalyptic number.

22000020221111 is a deficient number, since it is larger than the sum of its proper divisors (13571883313).

22000020221111 is a wasteful number, since it uses less digits than its factorization.

22000020221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13571883312.

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

Adding to 22000020221111 its reverse (11112202000022), we get a palindrome (33112222221133).

The spelling of 22000020221111 in words is "twenty-two trillion, twenty million, two hundred twenty-one thousand, one hundred eleven".