222002232120 has 96 divisors (see below), whose sum is σ = 722220688800. Its totient is φ = 59142057216.

The previous prime is 222002232119. The next prime is 222002232121. The reversal of 222002232120 is 21232200222.

It is an interprime number because it is at equal distance from previous prime (222002232119) and next prime (222002232121).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222002232093 and 222002232102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222002232121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60301 + ... + 669059.

It is an arithmetic number, because the mean of its divisors is an integer number (7523132175).

Almost surely, 2^222002232120 is an apocalyptic number.

222002232120 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 222002232120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361110344400).

222002232120 is an abundant number, since it is smaller than the sum of its proper divisors (500218456680).

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

222002232120 is a wasteful number, since it uses less digits than its factorization.

222002232120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609789 (or 609782 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 222002232120 its reverse (21232200222), we get a palindrome (243234432342).

The spelling of 222002232120 in words is "two hundred twenty-two billion, two million, two hundred thirty-two thousand, one hundred twenty".