222002122001 has 12 divisors (see below), whose sum is σ = 258372914436. Its totient is φ = 189948337920.

The previous prime is 222002121961. The next prime is 222002122003. The reversal of 222002122001 is 100221200222.

It can be written as a sum of positive squares in 2 ways, for example, as 190793366401 + 31208755600 = 436799^2 + 176660^2 .

It is a de Polignac number, because none of the positive numbers 2^k-222002122001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222002122003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53960540 + ... + 53964653.

It is an arithmetic number, because the mean of its divisors is an integer number (21531076203).

Almost surely, 2^222002122001 is an apocalyptic number.

It is an amenable number.

222002122001 is a deficient number, since it is larger than the sum of its proper divisors (36370792435).

222002122001 is a wasteful number, since it uses less digits than its factorization.

222002122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107925232 (or 107925221 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 222002122001 its reverse (100221200222), we get a palindrome (322223322223).

The spelling of 222002122001 in words is "two hundred twenty-two billion, two million, one hundred twenty-two thousand, one".