1014221021 has 4 divisors (see below), whose sum is σ = 1106422944. Its totient is φ = 922019100.

The previous prime is 1014220937. The next prime is 1014221051. The reversal of 1014221021 is 1201224101.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1014221021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1014220987 and 1014221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1014221051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46100945 + ... + 46100966.

It is an arithmetic number, because the mean of its divisors is an integer number (276605736).

Almost surely, 2^1014221021 is an apocalyptic number.

1014221021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1014221021 is a deficient number, since it is larger than the sum of its proper divisors (92201923).

1014221021 is an equidigital number, since it uses as much as digits as its factorization.

1014221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92201922.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1014221021 is about 31846.8369072974. The cubic root of 1014221021 is about 1004.7180453734.

Adding to 1014221021 its reverse (1201224101), we get a palindrome (2215445122).

The spelling of 1014221021 in words is "one billion, fourteen million, two hundred twenty-one thousand, twenty-one".