1002231301220 has 96 divisors (see below), whose sum is σ = 2170396166400. Its totient is φ = 388622707200.

The previous prime is 1002231301199. The next prime is 1002231301229. The reversal of 1002231301220 is 221031322001.

It is a super-2 number, since 2×1002231301220² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002231301229) 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, 20251466 + ... + 20300894.

It is an arithmetic number, because the mean of its divisors is an integer number (22608293400).

Almost surely, 2^{1002231301220} is an apocalyptic number.

1002231301220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002231301220 is an abundant number, since it is smaller than the sum of its proper divisors (1168164865180).

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

1002231301220 is a wasteful number, since it uses less digits than its factorization.

1002231301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49749 (or 49747 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1002231301220 its reverse (221031322001), we get a palindrome (1223262623221).

The spelling of 1002231301220 in words is "one trillion, two billion, two hundred thirty-one million, three hundred one thousand, two hundred twenty".