10220101221997 has 2 divisors, whose sum is σ = 10220101221998. Its totient is φ = 10220101221996.

The previous prime is 10220101221973. The next prime is 10220101222007. The reversal of 10220101221997 is 79912210102201.

10220101221997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8725206191716 + 1494895030281 = 2953846^2 + 1222659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10220101221997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10220101221917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110050610998 + 5110050610999.

It is an arithmetic number, because the mean of its divisors is an integer number (5110050610999).

Almost surely, 2^{10220101221997} is an apocalyptic number.

It is an amenable number.

10220101221997 is a deficient number, since it is larger than the sum of its proper divisors (1).

10220101221997 is an equidigital number, since it uses as much as digits as its factorization.

10220101221997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 37.

The spelling of 10220101221997 in words is "ten trillion, two hundred twenty billion, one hundred one million, two hundred twenty-one thousand, nine hundred ninety-seven".