222102100210997 has 2 divisors, whose sum is σ = 222102100210998. Its totient is φ = 222102100210996.

The previous prime is 222102100210993. The next prime is 222102100211053. The reversal of 222102100210997 is 799012001201222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180280864850641 + 41821235360356 = 13426871^2 + 6466934^2 .

It is a cyclic number.

It is not a de Polignac number, because 222102100210997 - 2² = 222102100210993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222102100210997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222102100210993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111051050105498 + 111051050105499.

It is an arithmetic number, because the mean of its divisors is an integer number (111051050105499).

Almost surely, 2^{222102100210997} is an apocalyptic number.

It is an amenable number.

222102100210997 is a deficient number, since it is larger than the sum of its proper divisors (1).

222102100210997 is an equidigital number, since it uses as much as digits as its factorization.

222102100210997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 222102100210997 in words is "two hundred twenty-two trillion, one hundred two billion, one hundred million, two hundred ten thousand, nine hundred ninety-seven".