220031121012 has 48 divisors (see below), whose sum is σ = 516272730624. Its totient is φ = 72935100000.

The previous prime is 220031121001. The next prime is 220031121053. The reversal of 220031121012 is 210121130022.

It is a junction number, because it is equal to n+sod(n) for n = 220031120982 and 220031121000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1842687 + ... + 1958457.

It is an arithmetic number, because the mean of its divisors is an integer number (10755681888).

Almost surely, 2^220031121012 is an apocalyptic number.

It is an amenable number.

220031121012 is an abundant number, since it is smaller than the sum of its proper divisors (296241609612).

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

220031121012 is a wasteful number, since it uses less digits than its factorization.

220031121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116660 (or 116658 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 220031121012 its reverse (210121130022), we get a palindrome (430152251034).

The spelling of 220031121012 in words is "two hundred twenty billion, thirty-one million, one hundred twenty-one thousand, twelve".