22021122102220 has 48 divisors (see below), whose sum is σ = 49422225958560. Its totient is φ = 8212825293824.

The previous prime is 22021122102191. The next prime is 22021122102241. The reversal of 22021122102220 is 2220122112022.

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, 302617855 + ... + 302690614.

It is an arithmetic number, because the mean of its divisors is an integer number (1029629707470).

Almost surely, 2^{22021122102220} is an apocalyptic number.

22021122102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021122102220 is an abundant number, since it is smaller than the sum of its proper divisors (27401103856340).

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

22021122102220 is a wasteful number, since it uses less digits than its factorization.

22021122102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605308602 (or 605308600 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22021122102220 its reverse (2220122112022), we get a palindrome (24241244214242).

The spelling of 22021122102220 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-two million, one hundred two thousand, two hundred twenty".