30122120100 has 72 divisors (see below), whose sum is σ = 87780458080. Its totient is φ = 7974766080.

The previous prime is 30122120099. The next prime is 30122120143. The reversal of 30122120100 is 102122103.

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

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, 319477 + ... + 402876.

Almost surely, 2^30122120100 is an apocalyptic number.

30122120100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30122120100 is an abundant number, since it is smaller than the sum of its proper divisors (57658337980).

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

30122120100 is a wasteful number, since it uses less digits than its factorization.

30122120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722509 (or 722502 counting only the distinct ones).

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

Adding to 30122120100 its reverse (102122103), we get a palindrome (30224242203).

The spelling of 30122120100 in words is "thirty billion, one hundred twenty-two million, one hundred twenty thousand, one hundred".