10020221213 has 4 divisors (see below), whose sum is σ = 10036568028. Its totient is φ = 10003874400.

The previous prime is 10020221207. The next prime is 10020221219. The reversal of 10020221213 is 31212202001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (10020221207) and next prime (10020221219).

It can be written as a sum of positive squares in 2 ways, for example, as 1883820409 + 8136400804 = 43403^2 + 90202^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020221213 - 2⁸ = 10020220957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020221219) 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, 8172488 + ... + 8173713.

It is an arithmetic number, because the mean of its divisors is an integer number (2509142007).

Almost surely, 2^10020221213 is an apocalyptic number.

It is an amenable number.

10020221213 is a deficient number, since it is larger than the sum of its proper divisors (16346815).

10020221213 is an equidigital number, since it uses as much as digits as its factorization.

10020221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16346814.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10020221213 its reverse (31212202001), we get a palindrome (41232423214).

The spelling of 10020221213 in words is "ten billion, twenty million, two hundred twenty-one thousand, two hundred thirteen".