222120001010020 has 36 divisors (see below), whose sum is σ = 467777144468340. Its totient is φ = 88596305357824.

The previous prime is 222120001009961. The next prime is 222120001010071. The reversal of 222120001010020 is 20010100021222.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 22490907881764 + 199629093128256 = 4742458^2 + 14129016^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42071215 + ... + 47055574.

It is an arithmetic number, because the mean of its divisors is an integer number (12993809568565).

Almost surely, 2^{222120001010020} is an apocalyptic number.

222120001010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120001010020 is an abundant number, since it is smaller than the sum of its proper divisors (245657143458320).

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

222120001010020 is an equidigital number, since it uses as much as digits as its factorization.

222120001010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89127504 (or 89127149 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222120001010020 its reverse (20010100021222), we get a palindrome (242130101031242).

The spelling of 222120001010020 in words is "two hundred twenty-two trillion, one hundred twenty billion, one million, ten thousand, twenty".