121312302200 has 48 divisors (see below), whose sum is σ = 282074591160. Its totient is φ = 48520880000.

The previous prime is 121312302197. The next prime is 121312302217. The reversal of 121312302200 is 2203213121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3916775 + ... + 3947625.

Almost surely, 2^121312302200 is an apocalyptic number.

121312302200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121312302200 is an abundant number, since it is smaller than the sum of its proper divisors (160762288960).

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

121312302200 is a wasteful number, since it uses less digits than its factorization.

121312302200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50528 (or 50519 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121312302200 its reverse (2203213121), we get a palindrome (123515515321).

The spelling of 121312302200 in words is "one hundred twenty-one billion, three hundred twelve million, three hundred two thousand, two hundred".