10220021213 has 4 divisors (see below), whose sum is σ = 10220336448. Its totient is φ = 10219705980.

The previous prime is 10220021209. The next prime is 10220021233. The reversal of 10220021213 is 31212002201.

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 not a de Polignac number, because 10220021213 - 2² = 10220021209 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 (10220021233) 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, 102581 + ... + 175962.

It is an arithmetic number, because the mean of its divisors is an integer number (2555084112).

Almost surely, 2^10220021213 is an apocalyptic number.

It is an amenable number.

10220021213 is a deficient number, since it is larger than the sum of its proper divisors (315235).

10220021213 is an equidigital number, since it uses as much as digits as its factorization.

10220021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315234.

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

Adding to 10220021213 its reverse (31212002201), we get a palindrome (41432023414).

The spelling of 10220021213 in words is "ten billion, two hundred twenty million, twenty-one thousand, two hundred thirteen".