222101232020 has 24 divisors (see below), whose sum is σ = 477788505768. Its totient is φ = 86673651200.

The previous prime is 222101232019. The next prime is 222101232047. The reversal of 222101232020 is 20232101222.

It can be written as a sum of positive squares in 4 ways, for example, as 36619415044 + 185481816976 = 191362^2 + 430676^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222101232020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135426761 + ... + 135428400.

It is an arithmetic number, because the mean of its divisors is an integer number (19907854407).

Almost surely, 2^222101232020 is an apocalyptic number.

222101232020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222101232020 is an abundant number, since it is smaller than the sum of its proper divisors (255687273748).

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

222101232020 is a wasteful number, since it uses less digits than its factorization.

222101232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270855211 (or 270855209 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 222101232020 its reverse (20232101222), we get a palindrome (242333333242).

The spelling of 222101232020 in words is "two hundred twenty-two billion, one hundred one million, two hundred thirty-two thousand, twenty".