121622150 has 24 divisors (see below), whose sum is σ = 243619824. Its totient is φ = 44906400.

The previous prime is 121622147. The next prime is 121622153. The reversal of 121622150 is 51226121.

It is an interprime number because it is at equal distance from previous prime (121622147) and next prime (121622153).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121622153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92906 + ... + 94205.

It is an arithmetic number, because the mean of its divisors is an integer number (10150826).

Almost surely, 2^121622150 is an apocalyptic number.

121622150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121622150 is an abundant number, since it is smaller than the sum of its proper divisors (121997674).

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

121622150 is a wasteful number, since it uses less digits than its factorization.

121622150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187136 (or 187131 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 121622150 is about 11028.2432871242. The cubic root of 121622150 is about 495.4550113367.

Adding to 121622150 its reverse (51226121), we get a palindrome (172848271).

The spelling of 121622150 in words is "one hundred twenty-one million, six hundred twenty-two thousand, one hundred fifty".