100321221030 has 32 divisors (see below), whose sum is σ = 243671791104. Its totient is φ = 26430007776.

The previous prime is 100321220999. The next prime is 100321221043. The reversal of 100321221030 is 30122123001.

It is a super-2 number, since 2×100321221030² (a number of 23 digits) contains 22 as substring.

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

It is a Curzon number.

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, 20142334 + ... + 20147313.

It is an arithmetic number, because the mean of its divisors is an integer number (7614743472).

Almost surely, 2^100321221030 is an apocalyptic number.

100321221030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100321221030 is an abundant number, since it is smaller than the sum of its proper divisors (143350570074).

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

100321221030 is a wasteful number, since it uses less digits than its factorization.

100321221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40289740.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 100321221030 its reverse (30122123001), we get a palindrome (130443344031).

The spelling of 100321221030 in words is "one hundred billion, three hundred twenty-one million, two hundred twenty-one thousand, thirty".