2021014421 has 8 divisors (see below), whose sum is σ = 2038855104. Its totient is φ = 2003210560.

The previous prime is 2021014409. The next prime is 2021014423. The reversal of 2021014421 is 1244101202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021014421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021014421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021014423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107501 + ... + 124893.

It is an arithmetic number, because the mean of its divisors is an integer number (254856888).

Almost surely, 2^2021014421 is an apocalyptic number.

It is an amenable number.

2021014421 is a deficient number, since it is larger than the sum of its proper divisors (17840683).

2021014421 is a wasteful number, since it uses less digits than its factorization.

2021014421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18411.

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

The square root of 2021014421 is about 44955.6939775152. The cubic root of 2021014421 is about 1264.3184361424.

Adding to 2021014421 its reverse (1244101202), we get a palindrome (3265115623).

The spelling of 2021014421 in words is "two billion, twenty-one million, fourteen thousand, four hundred twenty-one".