30120001220100 has 144 divisors (see below), whose sum is σ = 97388449615296. Its totient is φ = 7123725312000.

The previous prime is 30120001220093. The next prime is 30120001220167. The reversal of 30120001220100 is 102210002103.

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 47 ways as a sum of consecutive naturals, for example, 111172909 + ... + 111443508.

It is an arithmetic number, because the mean of its divisors is an integer number (676308677884).

Almost surely, 2^{30120001220100} is an apocalyptic number.

30120001220100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30120001220100 is an abundant number, since it is smaller than the sum of its proper divisors (67268448395196).

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

30120001220100 is a wasteful number, since it uses less digits than its factorization.

30120001220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222616486 (or 222616479 counting only the distinct ones).

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

Adding to 30120001220100 its reverse (102210002103), we get a palindrome (30222211222203).

The spelling of 30120001220100 in words is "thirty trillion, one hundred twenty billion, one million, two hundred twenty thousand, one hundred".