222000002121701 has 2 divisors, whose sum is σ = 222000002121702. Its totient is φ = 222000002121700.

The previous prime is 222000002121661. The next prime is 222000002121719. The reversal of 222000002121701 is 107121200000222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140840641816900 + 81159360304801 = 11867630^2 + 9008849^2 .

It is a cyclic number.

It is not a de Polignac number, because 222000002121701 - 2⁴² = 217601955610597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222000002124701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111000001060850 + 111000001060851.

It is an arithmetic number, because the mean of its divisors is an integer number (111000001060851).

Almost surely, 2^{222000002121701} is an apocalyptic number.

It is an amenable number.

222000002121701 is a deficient number, since it is larger than the sum of its proper divisors (1).

222000002121701 is an equidigital number, since it uses as much as digits as its factorization.

222000002121701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 222000002121701 its reverse (107121200000222), we get a palindrome (329121202121923).

The spelling of 222000002121701 in words is "two hundred twenty-two trillion, two million, one hundred twenty-one thousand, seven hundred one".