21222302113 has 4 divisors (see below), whose sum is σ = 21340862640. Its totient is φ = 21103741588.

The previous prime is 21222302099. The next prime is 21222302131. The reversal of 21222302113 is 31120322212.

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 21222302113 - 2¹³ = 21222293921 is a prime.

It is a super-2 number, since 2×21222302113² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21282302113) 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, 59279995 + ... + 59280352.

It is an arithmetic number, because the mean of its divisors is an integer number (5335215660).

Almost surely, 2^21222302113 is an apocalyptic number.

It is an amenable number.

21222302113 is a deficient number, since it is larger than the sum of its proper divisors (118560527).

21222302113 is a wasteful number, since it uses less digits than its factorization.

21222302113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118560526.

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

Adding to 21222302113 its reverse (31120322212), we get a palindrome (52342624325).

The spelling of 21222302113 in words is "twenty-one billion, two hundred twenty-two million, three hundred two thousand, one hundred thirteen".