1422021401 has 4 divisors (see below), whose sum is σ = 1423325904. Its totient is φ = 1420716900.

The previous prime is 1422021361. The next prime is 1422021431. The reversal of 1422021401 is 1041202241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1041202241 = 8969 ⋅116089.

It is a cyclic number.

It is not a de Polignac number, because 1422021401 - 2¹⁴ = 1422005017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1422021401.

It is not an unprimeable number, because it can be changed into a prime (1422021431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650615 + ... + 652796.

It is an arithmetic number, because the mean of its divisors is an integer number (355831476).

Almost surely, 2^1422021401 is an apocalyptic number.

It is an amenable number.

1422021401 is a deficient number, since it is larger than the sum of its proper divisors (1304503).

1422021401 is a wasteful number, since it uses less digits than its factorization.

1422021401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304502.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1422021401 is about 37709.6990308859. The cubic root of 1422021401 is about 1124.5239535841.

Adding to 1422021401 its reverse (1041202241), we get a palindrome (2463223642).

The spelling of 1422021401 in words is "one billion, four hundred twenty-two million, twenty-one thousand, four hundred one".