22203115401220 has 48 divisors (see below), whose sum is σ = 50223771214848. Its totient is φ = 8196347376000.

The previous prime is 22203115400989. The next prime is 22203115401227. The reversal of 22203115401220 is 2210451130222.

It is not an unprimeable number, because it can be changed into a prime (22203115401227) 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, 7751964 + ... + 10222483.

It is an arithmetic number, because the mean of its divisors is an integer number (1046328566976).

Almost surely, 2^{22203115401220} is an apocalyptic number.

22203115401220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22203115401220 is an abundant number, since it is smaller than the sum of its proper divisors (28020655813628).

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

22203115401220 is a wasteful number, since it uses less digits than its factorization.

22203115401220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17979220 (or 17979218 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 22203115401220 its reverse (2210451130222), we get a palindrome (24413566531442).

The spelling of 22203115401220 in words is "twenty-two trillion, two hundred three billion, one hundred fifteen million, four hundred one thousand, two hundred twenty".