121622137 has 16 divisors (see below), whose sum is σ = 156199680. Its totient is φ = 92043072.

The previous prime is 121622101. The next prime is 121622147. The reversal of 121622137 is 731226121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121622137 - 2²³ = 113233529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121622147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26962 + ... + 31147.

It is an arithmetic number, because the mean of its divisors is an integer number (9762480).

Almost surely, 2^121622137 is an apocalyptic number.

It is an amenable number.

121622137 is a deficient number, since it is larger than the sum of its proper divisors (34577543).

121622137 is a wasteful number, since it uses less digits than its factorization.

121622137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58152.

The product of its digits is 1008, while the sum is 25.

The square root of 121622137 is about 11028.2426977284. The cubic root of 121622137 is about 495.4549936839.

Adding to 121622137 its reverse (731226121), we get a palindrome (852848258).

The spelling of 121622137 in words is "one hundred twenty-one million, six hundred twenty-two thousand, one hundred thirty-seven".