1020320222100 has 36 divisors (see below), whose sum is σ = 2952126510144. Its totient is φ = 272085392480.

The previous prime is 1020320222083. The next prime is 1020320222111. The reversal of 1020320222100 is 12220230201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1020320222100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1700533404 + ... + 1700534003.

Almost surely, 2^{1020320222100} is an apocalyptic number.

1020320222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020320222100 is an abundant number, since it is smaller than the sum of its proper divisors (1931806288044).

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

1020320222100 is a wasteful number, since it uses less digits than its factorization.

1020320222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401067424 (or 3401067417 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 1020320222100 its reverse (12220230201), we get a palindrome (1032540452301).

The spelling of 1020320222100 in words is "one trillion, twenty billion, three hundred twenty million, two hundred twenty-two thousand, one hundred".