222220001120100 has 144 divisors (see below), whose sum is σ = 644767198716480. Its totient is φ = 59091906931200.

The previous prime is 222220001120087. The next prime is 222220001120111. The reversal of 222220001120100 is 1021100022222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 222220001120100.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 293886114 + ... + 294641286.

Almost surely, 2^{222220001120100} is an apocalyptic number.

222220001120100 is a gapful number since it is divisible by the number (20) 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 222220001120100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322383599358240).

222220001120100 is an abundant number, since it is smaller than the sum of its proper divisors (422547197596380).

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

222220001120100 is a wasteful number, since it uses less digits than its factorization.

222220001120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757950 (or 757943 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222220001120100 its reverse (1021100022222), we get a palindrome (223241101142322).

The spelling of 222220001120100 in words is "two hundred twenty-two trillion, two hundred twenty billion, one million, one hundred twenty thousand, one hundred".