100222031197 has 2 divisors, whose sum is σ = 100222031198. Its totient is φ = 100222031196.

The previous prime is 100222031171. The next prime is 100222031309. The reversal of 100222031197 is 791130222001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98488641241 + 1733389956 = 313829^2 + 41634^2 .

It is a cyclic number.

It is not a de Polignac number, because 100222031197 - 2¹⁹ = 100221506909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100222031167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50111015598 + 50111015599.

It is an arithmetic number, because the mean of its divisors is an integer number (50111015599).

Almost surely, 2^100222031197 is an apocalyptic number.

It is an amenable number.

100222031197 is a deficient number, since it is larger than the sum of its proper divisors (1).

100222031197 is an equidigital number, since it uses as much as digits as its factorization.

100222031197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

Adding to 100222031197 its reverse (791130222001), we get a palindrome (891352253198).

The spelling of 100222031197 in words is "one hundred billion, two hundred twenty-two million, thirty-one thousand, one hundred ninety-seven".