121322150 has 12 divisors (see below), whose sum is σ = 225659292. Its totient is φ = 48528840.

The previous prime is 121322137. The next prime is 121322161. The reversal of 121322150 is 51223121.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1213172 + ... + 1213271.

It is an arithmetic number, because the mean of its divisors is an integer number (18804941).

Almost surely, 2^121322150 is an apocalyptic number.

121322150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121322150 is a deficient number, since it is larger than the sum of its proper divisors (104337142).

121322150 is a wasteful number, since it uses less digits than its factorization.

121322150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426455 (or 2426450 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 121322150 is about 11014.6334482814. The cubic root of 121322150 is about 495.0473035772.

Adding to 121322150 its reverse (51223121), we get a palindrome (172545271).

The spelling of 121322150 in words is "one hundred twenty-one million, three hundred twenty-two thousand, one hundred fifty".