222001221011001 has 4 divisors (see below), whose sum is σ = 296001628014672. Its totient is φ = 148000814007332.

The previous prime is 222001221010939. The next prime is 222001221011027. The reversal of 222001221011001 is 100110122100222.

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 222001221011001 - 2⁶ = 222001221010937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222001221015001) 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, 37000203501831 + ... + 37000203501836.

It is an arithmetic number, because the mean of its divisors is an integer number (74000407003668).

Almost surely, 2^{222001221011001} is an apocalyptic number.

It is an amenable number.

222001221011001 is a deficient number, since it is larger than the sum of its proper divisors (74000407003671).

222001221011001 is an equidigital number, since it uses as much as digits as its factorization.

222001221011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74000407003670.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 222001221011001 its reverse (100110122100222), we get a palindrome (322111343111223).

The spelling of 222001221011001 in words is "two hundred twenty-two trillion, one billion, two hundred twenty-one million, eleven thousand, one".