22221213013 has 16 divisors (see below), whose sum is σ = 24266752000. Its totient is φ = 20270107440.

The previous prime is 22221212999. The next prime is 22221213101. The reversal of 22221213013 is 31031212222.

It is a de Polignac number, because none of the positive numbers 2^k-22221213013 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 (22221213713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22420 + ... + 212002.

It is an arithmetic number, because the mean of its divisors is an integer number (1516672000).

Almost surely, 2^22221213013 is an apocalyptic number.

It is an amenable number.

22221213013 is a deficient number, since it is larger than the sum of its proper divisors (2045538987).

22221213013 is a wasteful number, since it uses less digits than its factorization.

22221213013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189832.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22221213013 its reverse (31031212222), we get a palindrome (53252425235).

It can be divided in two parts, 222212 and 13013, that added together give a square (235225 = 485²).

The spelling of 22221213013 in words is "twenty-two billion, two hundred twenty-one million, two hundred thirteen thousand, thirteen".