10400221267 has 2 divisors, whose sum is σ = 10400221268. Its totient is φ = 10400221266.

The previous prime is 10400221231. The next prime is 10400221343. The reversal of 10400221267 is 76212200401.

It is a weak prime.

It is an emirp because it is prime and its reverse (76212200401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10400221267 is a prime.

It is not a weakly prime, because it can be changed into another prime (10400221207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200110633 + 5200110634.

It is an arithmetic number, because the mean of its divisors is an integer number (5200110634).

Almost surely, 2^10400221267 is an apocalyptic number.

10400221267 is a deficient number, since it is larger than the sum of its proper divisors (1).

10400221267 is an equidigital number, since it uses as much as digits as its factorization.

10400221267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 10400221267 its reverse (76212200401), we get a palindrome (86612421668).

The spelling of 10400221267 in words is "ten billion, four hundred million, two hundred twenty-one thousand, two hundred sixty-seven".