20020012213 has 4 divisors (see below), whose sum is σ = 20301984288. Its totient is φ = 19738040140.

The previous prime is 20020012193. The next prime is 20020012247. The reversal of 20020012213 is 31221002002.

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-20020012213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020012193 and 20020012202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020012273) 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, 140985931 + ... + 140986072.

It is an arithmetic number, because the mean of its divisors is an integer number (5075496072).

Almost surely, 2^20020012213 is an apocalyptic number.

It is an amenable number.

20020012213 is a deficient number, since it is larger than the sum of its proper divisors (281972075).

20020012213 is an equidigital number, since it uses as much as digits as its factorization.

20020012213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281972074.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20020012213 its reverse (31221002002), we get a palindrome (51241014215).

The spelling of 20020012213 in words is "twenty billion, twenty million, twelve thousand, two hundred thirteen".