22040420220400 has 30 divisors (see below), whose sum is σ = 52952109580472. Its totient is φ = 8816168088000.

The previous prime is 22040420220373. The next prime is 22040420220419. The reversal of 22040420220400 is 402202404022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27550524876 + ... + 27550525675.

Almost surely, 2^{22040420220400} is an apocalyptic number.

22040420220400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22040420220400 is an abundant number, since it is smaller than the sum of its proper divisors (30911689360072).

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

22040420220400 is a wasteful number, since it uses less digits than its factorization.

22040420220400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55101050569 (or 55101050558 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22040420220400 its reverse (402202404022), we get a palindrome (22442622624422).

The spelling of 22040420220400 in words is "twenty-two trillion, forty billion, four hundred twenty million, two hundred twenty thousand, four hundred".