1422456021 has 24 divisors (see below), whose sum is σ = 2351435840. Its totient is φ = 811705536.

The previous prime is 1422456019. The next prime is 1422456037. The reversal of 1422456021 is 1206542241.

1422456021 is a `hidden beast` number, since 14 + 2 + 2 + 45 + 602 + 1 = 666.

It is not a de Polignac number, because 1422456021 - 2¹ = 1422456019 is a prime.

It is a super-2 number, since 2×1422456021² = 4046762263358304882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422456221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31281 + ... + 61833.

Almost surely, 2^1422456021 is an apocalyptic number.

It is an amenable number.

1422456021 is a deficient number, since it is larger than the sum of its proper divisors (928979819).

1422456021 is a wasteful number, since it uses less digits than its factorization.

1422456021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31305 (or 31302 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1422456021 is about 37715.4612990482. The cubic root of 1422456021 is about 1124.6385066695.

Adding to 1422456021 its reverse (1206542241), we get a palindrome (2628998262).

The spelling of 1422456021 in words is "one billion, four hundred twenty-two million, four hundred fifty-six thousand, twenty-one".