123122212001 has 4 divisors (see below), whose sum is σ = 123766831104. Its totient is φ = 122477592900.

The previous prime is 123122211997. The next prime is 123122212009. The reversal of 123122212001 is 100212221321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 100212221321 = 113 ⋅886833817.

It is a cyclic number.

It is not a de Polignac number, because 123122212001 - 2² = 123122211997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123122212009) 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, 322309265 + ... + 322309646.

It is an arithmetic number, because the mean of its divisors is an integer number (30941707776).

Almost surely, 2^123122212001 is an apocalyptic number.

It is an amenable number.

123122212001 is a deficient number, since it is larger than the sum of its proper divisors (644619103).

123122212001 is an equidigital number, since it uses as much as digits as its factorization.

123122212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644619102.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 123122212001 its reverse (100212221321), we get a palindrome (223334433322).

The spelling of 123122212001 in words is "one hundred twenty-three billion, one hundred twenty-two million, two hundred twelve thousand, one".