122101455 has 32 divisors (see below), whose sum is σ = 230976000. Its totient is φ = 53891712.

The previous prime is 122101439. The next prime is 122101459. The reversal of 122101455 is 554101221.

It is not a de Polignac number, because 122101455 - 2⁴ = 122101439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101459) 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 31 ways as a sum of consecutive naturals, for example, 17005 + ... + 23094.

It is an arithmetic number, because the mean of its divisors is an integer number (7218000).

Almost surely, 2^122101455 is an apocalyptic number.

122101455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122101455 is a deficient number, since it is larger than the sum of its proper divisors (108874545).

122101455 is a wasteful number, since it uses less digits than its factorization.

122101455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40143.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 122101455 is about 11049.9527148310. The cubic root of 122101455 is about 496.1050102303.

Adding to 122101455 its reverse (554101221), we get a palindrome (676202676).

The spelling of 122101455 in words is "one hundred twenty-two million, one hundred one thousand, four hundred fifty-five".