30021220123100 has 36 divisors (see below), whose sum is σ = 65153901227184. Its totient is φ = 12007040388480.

The previous prime is 30021220123043. The next prime is 30021220123157. The reversal of 30021220123100 is 132102212003.

It is an interprime number because it is at equal distance from previous prime (30021220123043) and next prime (30021220123157).

It is a super-2 number, since 2×30021220123100² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17261912 + ... + 18921311.

It is an arithmetic number, because the mean of its divisors is an integer number (1809830589644).

Almost surely, 2^{30021220123100} is an apocalyptic number.

It is an amenable number.

30021220123100 is an abundant number, since it is smaller than the sum of its proper divisors (35132681104084).

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

30021220123100 is a wasteful number, since it uses less digits than its factorization.

30021220123100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36191534 (or 36191527 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30021220123100 its reverse (132102212003), we get a palindrome (30153322335103).

The spelling of 30021220123100 in words is "thirty trillion, twenty-one billion, two hundred twenty million, one hundred twenty-three thousand, one hundred".