20122222213 has 8 divisors (see below), whose sum is σ = 21207484800. Its totient is φ = 19039579488.

The previous prime is 20122222207. The next prime is 20122222217. The reversal of 20122222213 is 31222222102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20122222213 - 2⁵ = 20122222181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122222217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639181 + ... + 669922.

It is an arithmetic number, because the mean of its divisors is an integer number (2650935600).

Almost surely, 2^20122222213 is an apocalyptic number.

It is an amenable number.

20122222213 is a deficient number, since it is larger than the sum of its proper divisors (1085262587).

20122222213 is a wasteful number, since it uses less digits than its factorization.

20122222213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309931.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20122222213 its reverse (31222222102), we get a palindrome (51344444315).

The spelling of 20122222213 in words is "twenty billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred thirteen".