1422021361 has 2 divisors, whose sum is σ = 1422021362. Its totient is φ = 1422021360.

The previous prime is 1422021353. The next prime is 1422021431. The reversal of 1422021361 is 1631202241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1417070736 + 4950625 = 37644^2 + 2225^2 .

It is a cyclic number.

It is not a de Polignac number, because 1422021361 - 2³ = 1422021353 is a prime.

It is a super-2 number, since 2×1422021361² = 4044289502280584642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1422031361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711010680 + 711010681.

It is an arithmetic number, because the mean of its divisors is an integer number (711010681).

Almost surely, 2^1422021361 is an apocalyptic number.

It is an amenable number.

1422021361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422021361 is an equidigital number, since it uses as much as digits as its factorization.

1422021361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1422021361 is about 37709.6985005184. The cubic root of 1422021361 is about 1124.5239430402.

The spelling of 1422021361 in words is "one billion, four hundred twenty-two million, twenty-one thousand, three hundred sixty-one".