121197850 has 48 divisors (see below), whose sum is σ = 232485120. Its totient is φ = 46987200.

The previous prime is 121197847. The next prime is 121197871. The reversal of 121197850 is 58791121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240699 + ... + 241201.

It is an arithmetic number, because the mean of its divisors is an integer number (4843440).

Almost surely, 2^121197850 is an apocalyptic number.

121197850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121197850 is a deficient number, since it is larger than the sum of its proper divisors (111287270).

121197850 is a wasteful number, since it uses less digits than its factorization.

121197850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 34.

The square root of 121197850 is about 11008.9895085789. The cubic root of 121197850 is about 494.8781797288.

The spelling of 121197850 in words is "one hundred twenty-one million, one hundred ninety-seven thousand, eight hundred fifty".