201422021 has 8 divisors (see below), whose sum is σ = 212182080. Its totient is φ = 190677888.

The previous prime is 201422003. The next prime is 201422027. The reversal of 201422021 is 120224102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201422021 - 2¹⁴ = 201405637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201421987 and 201422005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201422027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29120 + ... + 35366.

It is an arithmetic number, because the mean of its divisors is an integer number (26522760).

Almost surely, 2^201422021 is an apocalyptic number.

It is an amenable number.

201422021 is a deficient number, since it is larger than the sum of its proper divisors (10760059).

201422021 is a wasteful number, since it uses less digits than its factorization.

201422021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7963.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 201422021 is about 14192.3226076636. The cubic root of 201422021 is about 586.1862805528.

Adding to 201422021 its reverse (120224102), we get a palindrome (321646123).

The spelling of 201422021 in words is "two hundred one million, four hundred twenty-two thousand, twenty-one".