222001041021 has 4 divisors (see below), whose sum is σ = 296001388032. Its totient is φ = 148000694012.

The previous prime is 222001041007. The next prime is 222001041037. The reversal of 222001041021 is 120140100222.

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 222001041021 - 2⁶ = 222001040957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001041121) 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, 37000173501 + ... + 37000173506.

It is an arithmetic number, because the mean of its divisors is an integer number (74000347008).

Almost surely, 2^222001041021 is an apocalyptic number.

It is an amenable number.

222001041021 is a deficient number, since it is larger than the sum of its proper divisors (74000347011).

222001041021 is an equidigital number, since it uses as much as digits as its factorization.

222001041021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74000347010.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222001041021 its reverse (120140100222), we get a palindrome (342141141243).

The spelling of 222001041021 in words is "two hundred twenty-two billion, one million, forty-one thousand, twenty-one".