30251222421212 has 144 divisors (see below), whose sum is σ = 60915369701760. Its totient is φ = 13064399290368.

The previous prime is 30251222421193. The next prime is 30251222421247. The reversal of 30251222421212 is 21212422215203.

It is a congruent number.

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, 7416330989 + ... + 7416335067.

Almost surely, 2^{30251222421212} is an apocalyptic number.

It is an amenable number.

30251222421212 is an abundant number, since it is smaller than the sum of its proper divisors (30664147280548).

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

30251222421212 is a wasteful number, since it uses less digits than its factorization.

30251222421212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6880 (or 6861 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 30251222421212 its reverse (21212422215203), we get a palindrome (51463644636415).

The spelling of 30251222421212 in words is "thirty trillion, two hundred fifty-one billion, two hundred twenty-two million, four hundred twenty-one thousand, two hundred twelve".