222201121001 has 4 divisors (see below), whose sum is σ = 224697762900. Its totient is φ = 219704479104.

The previous prime is 222201120997. The next prime is 222201121003. The reversal of 222201121001 is 100121102222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151006074025 + 71195046976 = 388595^2 + 266824^2 .

It is a cyclic number.

It is not a de Polignac number, because 222201121001 - 2² = 222201120997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222201121003) 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, 1248320816 + ... + 1248320993.

It is an arithmetic number, because the mean of its divisors is an integer number (56174440725).

Almost surely, 2^222201121001 is an apocalyptic number.

It is an amenable number.

222201121001 is a deficient number, since it is larger than the sum of its proper divisors (2496641899).

222201121001 is an equidigital number, since it uses as much as digits as its factorization.

222201121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496641898.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222201121001 its reverse (100121102222), we get a palindrome (322322223223).

The spelling of 222201121001 in words is "two hundred twenty-two billion, two hundred one million, one hundred twenty-one thousand, one".