40222011397 has 2 divisors, whose sum is σ = 40222011398. Its totient is φ = 40222011396.

The previous prime is 40222011383. The next prime is 40222011463. The reversal of 40222011397 is 79311022204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35056570756 + 5165440641 = 187234^2 + 71871^2 .

It is a cyclic number.

It is not a de Polignac number, because 40222011397 - 2¹⁹ = 40221487109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40222011337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111005698 + 20111005699.

It is an arithmetic number, because the mean of its divisors is an integer number (20111005699).

Almost surely, 2^40222011397 is an apocalyptic number.

It is an amenable number.

40222011397 is a deficient number, since it is larger than the sum of its proper divisors (1).

40222011397 is an equidigital number, since it uses as much as digits as its factorization.

40222011397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 40222011397 in words is "forty billion, two hundred twenty-two million, eleven thousand, three hundred ninety-seven".