122001145 has 16 divisors (see below), whose sum is σ = 167500800. Its totient is φ = 83565504.

The previous prime is 122001137. The next prime is 122001149. The reversal of 122001145 is 541100221.

It is a cyclic number.

It is not a de Polignac number, because 122001145 - 2³ = 122001137 is a prime.

It is a super-2 number, since 2×122001145² = 29768558762622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122001149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49656 + ... + 52054.

It is an arithmetic number, because the mean of its divisors is an integer number (10468800).

Almost surely, 2^122001145 is an apocalyptic number.

It is an amenable number.

122001145 is a deficient number, since it is larger than the sum of its proper divisors (45499655).

122001145 is a wasteful number, since it uses less digits than its factorization.

122001145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 122001145 is about 11045.4128487803. The cubic root of 122001145 is about 495.9691179719.

Adding to 122001145 its reverse (541100221), we get a palindrome (663101366).

The spelling of 122001145 in words is "one hundred twenty-two million, one thousand, one hundred forty-five".