22203012321220 has 12 divisors (see below), whose sum is σ = 46626325874604. Its totient is φ = 8881204928480.

The previous prime is 22203012321173. The next prime is 22203012321221. The reversal of 22203012321220 is 2212321030222.

It can be written as a sum of positive squares in 2 ways, for example, as 4661004652096 + 17542007669124 = 2158936^2 + 4188318^2 .

It is a super-3 number, since 3×22203012321220³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 22203012321191 and 22203012321200.

It is not an unprimeable number, because it can be changed into a prime (22203012321221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555075308011 + ... + 555075308050.

It is an arithmetic number, because the mean of its divisors is an integer number (3885527156217).

Almost surely, 2^{22203012321220} is an apocalyptic number.

22203012321220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22203012321220 is an abundant number, since it is smaller than the sum of its proper divisors (24423313553384).

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

22203012321220 is a wasteful number, since it uses less digits than its factorization.

22203012321220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110150616070 (or 1110150616068 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 22203012321220 its reverse (2212321030222), we get a palindrome (24415333351442).

The spelling of 22203012321220 in words is "twenty-two trillion, two hundred three billion, twelve million, three hundred twenty-one thousand, two hundred twenty".