1002210031000 has 32 divisors (see below), whose sum is σ = 2345171474880. Its totient is φ = 400884012000.

The previous prime is 1002210030971. The next prime is 1002210031003. The reversal of 1002210031000 is 1300122001.

It is a super-2 number, since 2×1002210031000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002210031003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501104016 + ... + 501106015.

It is an arithmetic number, because the mean of its divisors is an integer number (73286608590).

Almost surely, 2^{1002210031000} is an apocalyptic number.

1002210031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002210031000 is an abundant number, since it is smaller than the sum of its proper divisors (1342961443880).

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

1002210031000 is a wasteful number, since it uses less digits than its factorization.

1002210031000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002210052 (or 1002210038 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 1002210031000 its reverse (1300122001), we get a palindrome (1003510153001).

The spelling of 1002210031000 in words is "one trillion, two billion, two hundred ten million, thirty-one thousand".