122155001 has 16 divisors (see below), whose sum is σ = 131241600. Its totient is φ = 113435520.

The previous prime is 122154961. The next prime is 122155027. The reversal of 122155001 is 100551221.

It is a cyclic number.

It is not a de Polignac number, because 122155001 - 2⁶ = 122154937 is a prime.

It is a super-3 number, since 3×122155001³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122152001) 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, 115925 + ... + 116973.

It is an arithmetic number, because the mean of its divisors is an integer number (8202600).

Almost surely, 2^122155001 is an apocalyptic number.

It is an amenable number.

122155001 is a deficient number, since it is larger than the sum of its proper divisors (9086599).

122155001 is a wasteful number, since it uses less digits than its factorization.

122155001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 122155001 is about 11052.3753555514. The cubic root of 122155001 is about 496.1775197584.

The spelling of 122155001 in words is "one hundred twenty-two million, one hundred fifty-five thousand, one".