22056221145 has 64 divisors (see below), whose sum is σ = 41686396416. Its totient is φ = 9747578880.

The previous prime is 22056221113. The next prime is 22056221149. The reversal of 22056221145 is 54112265022.

It is not a de Polignac number, because 22056221145 - 2⁵ = 22056221113 is a prime.

It is a super-2 number, since 2×22056221145² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22056221149) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 591865 + ... + 628025.

It is an arithmetic number, because the mean of its divisors is an integer number (651349944).

Almost surely, 2^22056221145 is an apocalyptic number.

It is an amenable number.

22056221145 is a deficient number, since it is larger than the sum of its proper divisors (19630175271).

22056221145 is a wasteful number, since it uses less digits than its factorization.

22056221145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36370.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 22056221145 its reverse (54112265022), we get a palindrome (76168486167).

The spelling of 22056221145 in words is "twenty-two billion, fifty-six million, two hundred twenty-one thousand, one hundred forty-five".