1421401211 has 2 divisors, whose sum is σ = 1421401212. Its totient is φ = 1421401210.

The previous prime is 1421401207. The next prime is 1421401217. The reversal of 1421401211 is 1121041241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1421401211 - 2² = 1421401207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1421401211.

It is not a weakly prime, because it can be changed into another prime (1421401217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710700605 + 710700606.

It is an arithmetic number, because the mean of its divisors is an integer number (710700606).

Almost surely, 2^1421401211 is an apocalyptic number.

1421401211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421401211 is an equidigital number, since it uses as much as digits as its factorization.

1421401211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1421401211 is about 37701.4749180984. The cubic root of 1421401211 is about 1124.3604492647.

Adding to 1421401211 its reverse (1121041241), we get a palindrome (2542442452).

The spelling of 1421401211 in words is "one billion, four hundred twenty-one million, four hundred one thousand, two hundred eleven".