100022212220 has 96 divisors (see below), whose sum is σ = 241484544000. Its totient is φ = 34089398784.

The previous prime is 100022212207. The next prime is 100022212253. The reversal of 100022212220 is 22212220001.

It is a super-5 number, since 5×100022212220⁵ (a number of 56 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 100022212195 and 100022212204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21512456 + ... + 21517104.

It is an arithmetic number, because the mean of its divisors is an integer number (2515464000).

Almost surely, 2^100022212220 is an apocalyptic number.

100022212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100022212220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120742272000).

100022212220 is an abundant number, since it is smaller than the sum of its proper divisors (141462331780).

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

100022212220 is a wasteful number, since it uses less digits than its factorization.

100022212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5547 (or 5545 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 100022212220 its reverse (22212220001), we get a palindrome (122234432221).

It can be divided in two parts, 10002 and 2212220, that added together give a palindrome (2222222).

The spelling of 100022212220 in words is "one hundred billion, twenty-two million, two hundred twelve thousand, two hundred twenty".