22155335240 has 16 divisors (see below), whose sum is σ = 49849504380. Its totient is φ = 8862134080.

The previous prime is 22155335231. The next prime is 22155335249. The reversal of 22155335240 is 4253355122.

It is an interprime number because it is at equal distance from previous prime (22155335231) and next prime (22155335249).

It can be written as a sum of positive squares in 2 ways, for example, as 20043197476 + 2112137764 = 141574^2 + 45958^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22155335197 and 22155335206.

It is not an unprimeable number, because it can be changed into a prime (22155335249) 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, 276941651 + ... + 276941730.

Almost surely, 2^22155335240 is an apocalyptic number.

22155335240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22155335240 is an abundant number, since it is smaller than the sum of its proper divisors (27694169140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22155335240 is a wasteful number, since it uses less digits than its factorization.

22155335240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553883392 (or 553883388 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The spelling of 22155335240 in words is "twenty-two billion, one hundred fifty-five million, three hundred thirty-five thousand, two hundred forty".