22510220211220 has 48 divisors (see below), whose sum is σ = 57202441954560. Its totient is φ = 7263802151424.

The previous prime is 22510220211217. The next prime is 22510220211251. The reversal of 22510220211220 is 2211202201522.

It is a junction number, because it is equal to n+sod(n) for n = 22510220211191 and 22510220211200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4729035480 + ... + 4729040239.

It is an arithmetic number, because the mean of its divisors is an integer number (1191717540720).

Almost surely, 2^{22510220211220} is an apocalyptic number.

22510220211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22510220211220 is an abundant number, since it is smaller than the sum of its proper divisors (34692221743340).

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

22510220211220 is a wasteful number, since it uses less digits than its factorization.

22510220211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9458075752 (or 9458075750 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 22510220211220 its reverse (2211202201522), we get a palindrome (24721422412742).

The spelling of 22510220211220 in words is "twenty-two trillion, five hundred ten billion, two hundred twenty million, two hundred eleven thousand, two hundred twenty".