121312202 has 16 divisors (see below), whose sum is σ = 203128992. Its totient is φ = 53859120.

The previous prime is 121312199. The next prime is 121312229. The reversal of 121312202 is 202213121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63173 + ... + 65064.

It is an arithmetic number, because the mean of its divisors is an integer number (12695562).

Almost surely, 2^121312202 is an apocalyptic number.

121312202 is a deficient number, since it is larger than the sum of its proper divisors (81816790).

121312202 is a wasteful number, since it uses less digits than its factorization.

121312202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128293.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121312202 is about 11014.1818579502. The cubic root of 121312202 is about 495.0337724806.

Adding to 121312202 its reverse (202213121), we get a palindrome (323525323).

The spelling of 121312202 in words is "one hundred twenty-one million, three hundred twelve thousand, two hundred two".