30121102312212 has 48 divisors (see below), whose sum is σ = 72199053702720. Its totient is φ = 9766711809792.

The previous prime is 30121102312211. The next prime is 30121102312219. The reversal of 30121102312212 is 21221320112103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121102312211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6073353 + ... + 9855344.

It is an arithmetic number, because the mean of its divisors is an integer number (1504146952140).

Almost surely, 2^{30121102312212} is an apocalyptic number.

It is an amenable number.

30121102312212 is an abundant number, since it is smaller than the sum of its proper divisors (42077951390508).

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

30121102312212 is a wasteful number, since it uses less digits than its factorization.

30121102312212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15933000 (or 15932998 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 30121102312212 its reverse (21221320112103), we get a palindrome (51342422424315).

The spelling of 30121102312212 in words is "thirty trillion, one hundred twenty-one billion, one hundred two million, three hundred twelve thousand, two hundred twelve".