30121221213100 has 18 divisors (see below), whose sum is σ = 65363050032644. Its totient is φ = 12048488485200.

The previous prime is 30121221213067. The next prime is 30121221213113. The reversal of 30121221213100 is 131212212103.

It is a super-2 number, since 2×30121221213100² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150606105966 + ... + 150606106165.

Almost surely, 2^{30121221213100} is an apocalyptic number.

It is an amenable number.

30121221213100 is an abundant number, since it is smaller than the sum of its proper divisors (35241828819544).

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

30121221213100 is a wasteful number, since it uses less digits than its factorization.

30121221213100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301212212145 (or 301212212138 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 30121221213100 its reverse (131212212103), we get a palindrome (30252433425203).

The spelling of 30121221213100 in words is "thirty trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred thirteen thousand, one hundred".