22404420031213 has 4 divisors (see below), whose sum is σ = 24441185488608. Its totient is φ = 20367654573820.

The previous prime is 22404420031139. The next prime is 22404420031243. The reversal of 22404420031213 is 31213002440422.

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 22404420031213 - 2⁹ = 22404420030701 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 (22404420031243) 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, 1018382728681 + ... + 1018382728702.

It is an arithmetic number, because the mean of its divisors is an integer number (6110296372152).

Almost surely, 2^{22404420031213} is an apocalyptic number.

It is an amenable number.

22404420031213 is a deficient number, since it is larger than the sum of its proper divisors (2036765457395).

22404420031213 is a wasteful number, since it uses less digits than its factorization.

22404420031213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036765457394.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 22404420031213 its reverse (31213002440422), we get a palindrome (53617422471635).

The spelling of 22404420031213 in words is "twenty-two trillion, four hundred four billion, four hundred twenty million, thirty-one thousand, two hundred thirteen".