22220221021111 has 8 divisors (see below), whose sum is σ = 22763013442848. Its totient is φ = 21677468400000.

The previous prime is 22220221021051. The next prime is 22220221021133. The reversal of 22220221021111 is 11112012202222.

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

It is a cyclic number.

It is not a de Polignac number, because 22220221021111 - 2⁷ = 22220221020983 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 (22220221021181) 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, 8818390 + ... + 11054611.

It is an arithmetic number, because the mean of its divisors is an integer number (2845376680356).

Almost surely, 2^{22220221021111} is an apocalyptic number.

22220221021111 is a deficient number, since it is larger than the sum of its proper divisors (542792421737).

22220221021111 is a wasteful number, since it uses less digits than its factorization.

22220221021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19900313.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22220221021111 its reverse (11112012202222), we get a palindrome (33332233223333).

The spelling of 22220221021111 in words is "twenty-two trillion, two hundred twenty billion, two hundred twenty-one million, twenty-one thousand, one hundred eleven".