122012001 has 28 divisors (see below), whose sum is σ = 188870400. Its totient is φ = 78702840.

The previous prime is 122011999. The next prime is 122012021. The reversal of 122012001 is 100210221.

It is not a de Polignac number, because 122012001 - 2¹ = 122011999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (122012021) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 19900 + ... + 25298.

Almost surely, 2^122012001 is an apocalyptic number.

It is an amenable number.

122012001 is a deficient number, since it is larger than the sum of its proper divisors (66858399).

122012001 is an frugal number, since it uses more digits than its factorization.

122012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5448 (or 5433 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 122012001 is about 11045.9042635721. The cubic root of 122012001 is about 495.9838284378.

Adding to 122012001 its reverse (100210221), we get a palindrome (222222222).

The spelling of 122012001 in words is "one hundred twenty-two million, twelve thousand, one".