22502151144440 has 64 divisors (see below), whose sum is σ = 57137123628000. Its totient is φ = 7900441776640.

The previous prime is 22502151144433. The next prime is 22502151144449. The reversal of 22502151144440 is 4444115120522.

It is a happy number.

It is a super-2 number, since 2×22502151144440² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22502151144440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22502151144449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 881732975 + ... + 881758494.

Almost surely, 2^{22502151144440} is an apocalyptic number.

22502151144440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22502151144440 is an abundant number, since it is smaller than the sum of its proper divisors (34634972483560).

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

22502151144440 is a wasteful number, since it uses less digits than its factorization.

22502151144440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763491520 (or 1763491516 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 35.

Adding to 22502151144440 its reverse (4444115120522), we get a palindrome (26946266264962).

The spelling of 22502151144440 in words is "twenty-two trillion, five hundred two billion, one hundred fifty-one million, one hundred forty-four thousand, four hundred forty".