220010110011997 has 2 divisors, whose sum is σ = 220010110011998. Its totient is φ = 220010110011996.

The previous prime is 220010110011983. The next prime is 220010110012123. The reversal of 220010110011997 is 799110011010022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156703804023321 + 63306305988676 = 12518139^2 + 7956526^2 .

It is a cyclic number.

It is not a de Polignac number, because 220010110011997 - 2³⁹ = 219460354198109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220010110012997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110005055005998 + 110005055005999.

It is an arithmetic number, because the mean of its divisors is an integer number (110005055005999).

Almost surely, 2^{220010110011997} is an apocalyptic number.

It is an amenable number.

220010110011997 is a deficient number, since it is larger than the sum of its proper divisors (1).

220010110011997 is an equidigital number, since it uses as much as digits as its factorization.

220010110011997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 34.

The spelling of 220010110011997 in words is "two hundred twenty trillion, ten billion, one hundred ten million, eleven thousand, nine hundred ninety-seven".