1212421297230 has 128 divisors (see below), whose sum is σ = 3798354954240. Its totient is φ = 271311050880.

The previous prime is 1212421297183. The next prime is 1212421297259. The reversal of 1212421297230 is 327921242121.

1212421297230 is a `hidden beast` number, since 1 + 2 + 124 + 212 + 97 + 230 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15662262 + ... + 15739481.

It is an arithmetic number, because the mean of its divisors is an integer number (29674648080).

Almost surely, 2^{1212421297230} is an apocalyptic number.

1212421297230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212421297230 is an abundant number, since it is smaller than the sum of its proper divisors (2585933657010).

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

1212421297230 is a wasteful number, since it uses less digits than its factorization.

1212421297230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31401783 (or 31401777 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 1212421297230 in words is "one trillion, two hundred twelve billion, four hundred twenty-one million, two hundred ninety-seven thousand, two hundred thirty".