222123233101001 has 16 divisors (see below), whose sum is σ = 243894145683600. Its totient is φ = 201354776168448.

The previous prime is 222123233100983. The next prime is 222123233101009. The reversal of 222123233101001 is 100101332321222.

It can be written as a sum of positive squares in 8 ways, for example, as 84519541289401 + 137603691811600 = 9193451^2 + 11730460^2 .

It is a de Polignac number, because none of the positive numbers 2^k-222123233101001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222123233101009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550598150 + ... + 551001423.

It is an arithmetic number, because the mean of its divisors is an integer number (15243384105225).

Almost surely, 2^{222123233101001} is an apocalyptic number.

It is an amenable number.

222123233101001 is a deficient number, since it is larger than the sum of its proper divisors (21770912582599).

222123233101001 is a wasteful number, since it uses less digits than its factorization.

222123233101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101600028.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 222123233101001 its reverse (100101332321222), we get a palindrome (322224565422223).

The spelling of 222123233101001 in words is "two hundred twenty-two trillion, one hundred twenty-three billion, two hundred thirty-three million, one hundred one thousand, one".