30221210100 has 72 divisors (see below), whose sum is σ = 88922121120. Its totient is φ = 7922391680.

The previous prime is 30221210059. The next prime is 30221210113. The reversal of 30221210100 is 101212203.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 836007 + ... + 871406.

It is an arithmetic number, because the mean of its divisors is an integer number (1235029460).

Almost surely, 2^30221210100 is an apocalyptic number.

30221210100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30221210100 is an abundant number, since it is smaller than the sum of its proper divisors (58700911020).

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

30221210100 is a wasteful number, since it uses less digits than its factorization.

30221210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707489 (or 1707482 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 30221210100 its reverse (101212203), we get a palindrome (30322422303).

The spelling of 30221210100 in words is "thirty billion, two hundred twenty-one million, two hundred ten thousand, one hundred".