268211348732221 has 12 divisors (see below), whose sum is σ = 278392550603200. Its totient is φ = 258357334865760.

The previous prime is 268211348732213. The next prime is 268211348732263. The reversal of 268211348732221 is 122237843112862.

It is not a de Polignac number, because 268211348732221 - 2³ = 268211348732213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268211348732021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1009706691 + ... + 1009972288.

Almost surely, 2^{268211348732221} is an apocalyptic number.

It is an amenable number.

268211348732221 is a deficient number, since it is larger than the sum of its proper divisors (10181201870979).

268211348732221 is an equidigital number, since it uses as much as digits as its factorization.

268211348732221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019679140 (or 2019679099 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 52.

The spelling of 268211348732221 in words is "two hundred sixty-eight trillion, two hundred eleven billion, three hundred forty-eight million, seven hundred thirty-two thousand, two hundred twenty-one".