214011021 has 64 divisors (see below), whose sum is σ = 355332096. Its totient is φ = 111936000.

The previous prime is 214011019. The next prime is 214011023. The reversal of 214011021 is 120110412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (214011019) and next prime (214011023).

It is not a de Polignac number, because 214011021 - 2¹ = 214011019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 214010988 and 214011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214011023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2000050 + ... + 2000156.

It is an arithmetic number, because the mean of its divisors is an integer number (5552064).

Almost surely, 2^214011021 is an apocalyptic number.

214011021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

214011021 is a deficient number, since it is larger than the sum of its proper divisors (141321075).

214011021 is a wasteful number, since it uses less digits than its factorization.

214011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 214011021 is about 14629.1155235031. The cubic root of 214011021 is about 598.1526709071.

Adding to 214011021 its reverse (120110412), we get a palindrome (334121433).

It can be divided in two parts, 21401 and 1021, that added together give a palindrome (22422).

The spelling of 214011021 in words is "two hundred fourteen million, eleven thousand, twenty-one".