222220231001 has 4 divisors (see below), whose sum is σ = 223173966132. Its totient is φ = 221266495872.

The previous prime is 222220230983. The next prime is 222220231003. The reversal of 222220231001 is 100132022222.

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 79656595225 + 142563635776 = 282235^2 + 377576^2 .

It is a cyclic number.

It is not a de Polignac number, because 222220231001 - 2¹⁸ = 222219968857 is a prime.

It is a super-2 number, since 2×222220231001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222220231003) 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, 476867216 + ... + 476867681.

It is an arithmetic number, because the mean of its divisors is an integer number (55793491533).

Almost surely, 2^222220231001 is an apocalyptic number.

It is an amenable number.

222220231001 is a deficient number, since it is larger than the sum of its proper divisors (953735131).

222220231001 is an equidigital number, since it uses as much as digits as its factorization.

222220231001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953735130.

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

Adding to 222220231001 its reverse (100132022222), we get a palindrome (322352253223).

The spelling of 222220231001 in words is "two hundred twenty-two billion, two hundred twenty million, two hundred thirty-one thousand, one".