222120131020 has 96 divisors (see below), whose sum is σ = 495804431808. Its totient is φ = 83298435072.

The previous prime is 222120130957. The next prime is 222120131029. The reversal of 222120131020 is 20131021222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 222120130985 and 222120131003.

It is not an unprimeable number, because it can be changed into a prime (222120131029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124996372 + ... + 124998148.

It is an arithmetic number, because the mean of its divisors is an integer number (5164629498).

Almost surely, 2^222120131020 is an apocalyptic number.

222120131020 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 222120131020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247902215904).

222120131020 is an abundant number, since it is smaller than the sum of its proper divisors (273684300788).

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

222120131020 is a wasteful number, since it uses less digits than its factorization.

222120131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019 (or 3017 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 222120131020 its reverse (20131021222), we get a palindrome (242251152242).

The spelling of 222120131020 in words is "two hundred twenty-two billion, one hundred twenty million, one hundred thirty-one thousand, twenty".