40220320212197 has 2 divisors, whose sum is σ = 40220320212198. Its totient is φ = 40220320212196.

The previous prime is 40220320212181. The next prime is 40220320212263. The reversal of 40220320212197 is 79121202302204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38460264269956 + 1760055942241 = 6201634^2 + 1326671^2 .

It is a cyclic number.

It is not a de Polignac number, because 40220320212197 - 2⁴ = 40220320212181 is a prime.

It is a super-2 number, since 2×40220320212197² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40220320712197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20110160106098 + 20110160106099.

It is an arithmetic number, because the mean of its divisors is an integer number (20110160106099).

Almost surely, 2^{40220320212197} is an apocalyptic number.

It is an amenable number.

40220320212197 is a deficient number, since it is larger than the sum of its proper divisors (1).

40220320212197 is an equidigital number, since it uses as much as digits as its factorization.

40220320212197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 40220320212197 in words is "forty trillion, two hundred twenty billion, three hundred twenty million, two hundred twelve thousand, one hundred ninety-seven".