30000022121100 has 72 divisors (see below), whose sum is σ = 86925679747648. Its totient is φ = 7988428411200.

The previous prime is 30000022121099. The next prime is 30000022121117. The reversal of 30000022121100 is 112122000003.

It is a super-4 number, since 4×30000022121100⁴ (a number of 55 digits) contains 4444 as substring.

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, 72151654 + ... + 72566253.

Almost surely, 2^{30000022121100} is an apocalyptic number.

30000022121100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30000022121100 is an abundant number, since it is smaller than the sum of its proper divisors (56925657626548).

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

30000022121100 is a wasteful number, since it uses less digits than its factorization.

30000022121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144718615 (or 144718608 counting only the distinct ones).

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

Adding to 30000022121100 its reverse (112122000003), we get a palindrome (30112144121103).

The spelling of 30000022121100 in words is "thirty trillion, twenty-two million, one hundred twenty-one thousand, one hundred".