22120514145 has 12 divisors (see below), whose sum is σ = 38342224596. Its totient is φ = 11797607520.

The previous prime is 22120514113. The next prime is 22120514147. The reversal of 22120514145 is 54141502122.

It is a happy number.

22120514145 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 0 + 514 + 145 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17502496209 + 4618017936 = 132297^2 + 67956^2 .

It is not a de Polignac number, because 22120514145 - 2⁵ = 22120514113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22120514147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245783446 + ... + 245783535.

It is an arithmetic number, because the mean of its divisors is an integer number (3195185383).

Almost surely, 2^22120514145 is an apocalyptic number.

It is an amenable number.

22120514145 is a deficient number, since it is larger than the sum of its proper divisors (16221710451).

22120514145 is a wasteful number, since it uses less digits than its factorization.

22120514145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491566992 (or 491566989 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 22120514145 in words is "twenty-two billion, one hundred twenty million, five hundred fourteen thousand, one hundred forty-five".