22202001121220 has 48 divisors (see below), whose sum is σ = 46917839784816. Its totient is φ = 8824944960000.

The previous prime is 22202001121207. The next prime is 22202001121241. The reversal of 22202001121220 is 2212110020222.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5058144937024 + 17143856184196 = 2249032^2 + 4140514^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2352530 + ... + 7066710.

It is an arithmetic number, because the mean of its divisors is an integer number (977454995517).

Almost surely, 2^{22202001121220} is an apocalyptic number.

22202001121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22202001121220 is an abundant number, since it is smaller than the sum of its proper divisors (24715838663596).

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

22202001121220 is a wasteful number, since it uses less digits than its factorization.

22202001121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4715672 (or 4715670 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22202001121220 its reverse (2212110020222), we get a palindrome (24414111141442).

The spelling of 22202001121220 in words is "twenty-two trillion, two hundred two billion, one million, one hundred twenty-one thousand, two hundred twenty".