2221000022231 has 2 divisors, whose sum is σ = 2221000022232. Its totient is φ = 2221000022230.

The previous prime is 2221000022203. The next prime is 2221000022333. The reversal of 2221000022231 is 1322200001222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221000022231 is a prime.

It is a super-2 number, since 2×2221000022231² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221008022231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110500011115 + 1110500011116.

It is an arithmetic number, because the mean of its divisors is an integer number (1110500011116).

Almost surely, 2^{2221000022231} is an apocalyptic number.

2221000022231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221000022231 is an equidigital number, since it uses as much as digits as its factorization.

2221000022231 is an evil number, because the sum of its binary digits is even.

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

Adding to 2221000022231 its reverse (1322200001222), we get a palindrome (3543200023453).

The spelling of 2221000022231 in words is "two trillion, two hundred twenty-one billion, twenty-two thousand, two hundred thirty-one".