220122025400 has 48 divisors (see below), whose sum is σ = 513907405440. Its totient is φ = 87683443200.

The previous prime is 220122025379. The next prime is 220122025507. The reversal of 220122025400 is 4520221022.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2235224 + ... + 2331623.

It is an arithmetic number, because the mean of its divisors is an integer number (10706404280).

Almost surely, 2^220122025400 is an apocalyptic number.

220122025400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220122025400 is an abundant number, since it is smaller than the sum of its proper divisors (293785380040).

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

220122025400 is a wasteful number, since it uses less digits than its factorization.

220122025400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4567104 (or 4567095 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 220122025400 its reverse (4520221022), we get a palindrome (224642246422).

The spelling of 220122025400 in words is "two hundred twenty billion, one hundred twenty-two million, twenty-five thousand, four hundred".