22122202120220 has 48 divisors (see below), whose sum is σ = 48902129892000. Its totient is φ = 8383078287360.

The previous prime is 22122202120219. The next prime is 22122202120283. The reversal of 22122202120220 is 2202120222122.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22122202120192 and 22122202120201.

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, 70008980 + ... + 70324260.

It is an arithmetic number, because the mean of its divisors is an integer number (1018794372750).

Almost surely, 2^{22122202120220} is an apocalyptic number.

22122202120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122202120220 is an abundant number, since it is smaller than the sum of its proper divisors (26779927771780).

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

22122202120220 is a wasteful number, since it uses less digits than its factorization.

22122202120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499958 (or 499956 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22122202120220 its reverse (2202120222122), we get a palindrome (24324322342342).

The spelling of 22122202120220 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred two million, one hundred twenty thousand, two hundred twenty".