123022220201 has 4 divisors (see below), whose sum is σ = 123070599552. Its totient is φ = 122973840852.

The previous prime is 123022220171. The next prime is 123022220203. The reversal of 123022220201 is 102022220321.

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 a de Polignac number, because none of the positive numbers 2^k-123022220201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123022220201.

It is not an unprimeable number, because it can be changed into a prime (123022220203) 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, 24185861 + ... + 24190946.

It is an arithmetic number, because the mean of its divisors is an integer number (30767649888).

Almost surely, 2^123022220201 is an apocalyptic number.

It is an amenable number.

123022220201 is a deficient number, since it is larger than the sum of its proper divisors (48379351).

123022220201 is an equidigital number, since it uses as much as digits as its factorization.

123022220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48379350.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 123022220201 its reverse (102022220321), we get a palindrome (225044440522).

The spelling of 123022220201 in words is "one hundred twenty-three billion, twenty-two million, two hundred twenty thousand, two hundred one".