123100222001 has 4 divisors (see below), whose sum is σ = 123454978032. Its totient is φ = 122745465972.

The previous prime is 123100221997. The next prime is 123100222013. The reversal of 123100222001 is 100222001321.

It is a happy number.

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 123100222001 - 2² = 123100221997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123100222051) 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, 177377495 + ... + 177378188.

It is an arithmetic number, because the mean of its divisors is an integer number (30863744508).

Almost surely, 2^123100222001 is an apocalyptic number.

It is an amenable number.

123100222001 is a deficient number, since it is larger than the sum of its proper divisors (354756031).

123100222001 is an equidigital number, since it uses as much as digits as its factorization.

123100222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354756030.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 123100222001 its reverse (100222001321), we get a palindrome (223322223322).

The spelling of 123100222001 in words is "one hundred twenty-three billion, one hundred million, two hundred twenty-two thousand, one".