1022014021 has 6 divisors (see below), whose sum is σ = 1188873510. Its totient is φ = 876011976.

The previous prime is 1022014001. The next prime is 1022014033. The reversal of 1022014021 is 1204102201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 631516900 + 390497121 = 25130^2 + 19761^2 .

It is not a de Polignac number, because 1022014021 - 2¹¹ = 1022011973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022013992 and 1022014010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022014001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10428666 + ... + 10428763.

It is an arithmetic number, because the mean of its divisors is an integer number (198145585).

Almost surely, 2^1022014021 is an apocalyptic number.

It is an amenable number.

1022014021 is a deficient number, since it is larger than the sum of its proper divisors (166859489).

1022014021 is an equidigital number, since it uses as much as digits as its factorization.

1022014021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20857443 (or 20857436 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1022014021 is about 31968.9540179218. The cubic root of 1022014021 is about 1007.2848096834.

Adding to 1022014021 its reverse (1204102201), we get a palindrome (2226116222).

The spelling of 1022014021 in words is "one billion, twenty-two million, fourteen thousand, twenty-one".