22220100120 has 64 divisors (see below), whose sum is σ = 66831804000. Its totient is φ = 5910115328.

The previous prime is 22220100083. The next prime is 22220100137. The reversal of 22220100120 is 2100102222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22220100096 and 22220100105.

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, 191325 + ... + 284684.

Almost surely, 2^22220100120 is an apocalyptic number.

22220100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220100120 is an abundant number, since it is smaller than the sum of its proper divisors (44611703880).

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

22220100120 is a wasteful number, since it uses less digits than its factorization.

22220100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476412 (or 476408 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22220100120 its reverse (2100102222), we get a palindrome (24320202342).

The spelling of 22220100120 in words is "twenty-two billion, two hundred twenty million, one hundred thousand, one hundred twenty".