122101111001 has 4 divisors (see below), whose sum is σ = 122979536400. Its totient is φ = 121222685604.

The previous prime is 122101110953. The next prime is 122101111043. The reversal of 122101111001 is 100111101221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122101111001 - 2²⁶ = 122034002137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122101111061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439212491 + ... + 439212768.

It is an arithmetic number, because the mean of its divisors is an integer number (30744884100).

Almost surely, 2^122101111001 is an apocalyptic number.

It is an amenable number.

122101111001 is a deficient number, since it is larger than the sum of its proper divisors (878425399).

122101111001 is an equidigital number, since it uses as much as digits as its factorization.

122101111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878425398.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 122101111001 its reverse (100111101221), we get a palindrome (222212212222).

It can be divided in two parts, 12210 and 1111001, that added together give a palindrome (1123211).

The spelling of 122101111001 in words is "one hundred twenty-two billion, one hundred one million, one hundred eleven thousand, one".