220031023302100 has 36 divisors (see below), whose sum is σ = 477483138865404. Its totient is φ = 88009493505280.

The previous prime is 220031023302091. The next prime is 220031023302107. The reversal of 220031023302100 is 1203320130022.

It can be written as a sum of positive squares in 6 ways, for example, as 60958086844356 + 159072936457744 = 7807566^2 + 12612412^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220031023302107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33412897 + ... + 39452296.

It is an arithmetic number, because the mean of its divisors is an integer number (13263420524039).

Almost surely, 2^{220031023302100} is an apocalyptic number.

220031023302100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220031023302100 is an abundant number, since it is smaller than the sum of its proper divisors (257452115563304).

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

220031023302100 is a wasteful number, since it uses less digits than its factorization.

220031023302100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72895404 (or 72895397 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 220031023302100 its reverse (1203320130022), we get a palindrome (221234343432122).

The spelling of 220031023302100 in words is "two hundred twenty trillion, thirty-one billion, twenty-three million, three hundred two thousand, one hundred".