1420814222221 has 2 divisors, whose sum is σ = 1420814222222. Its totient is φ = 1420814222220.

The previous prime is 1420814222173. The next prime is 1420814222227. The reversal of 1420814222221 is 1222224180241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 822674396196 + 598139826025 = 907014^2 + 773395^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420814222221 - 2⁹ = 1420814221709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420814222227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710407111110 + 710407111111.

It is an arithmetic number, because the mean of its divisors is an integer number (710407111111).

Almost surely, 2^{1420814222221} is an apocalyptic number.

It is an amenable number.

1420814222221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420814222221 is an equidigital number, since it uses as much as digits as its factorization.

1420814222221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8192, while the sum is 31.

The spelling of 1420814222221 in words is "one trillion, four hundred twenty billion, eight hundred fourteen million, two hundred twenty-two thousand, two hundred twenty-one".