22121231113213 has 8 divisors (see below), whose sum is σ = 22635750236000. Its totient is φ = 21606715258128.

The previous prime is 22121231113159. The next prime is 22121231113283. The reversal of 22121231113213 is 31231113212122.

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 22121231113213 - 2⁴¹ = 19922207857661 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 (22121231113283) 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, 17709703 + ... + 18917611.

It is an arithmetic number, because the mean of its divisors is an integer number (2829468779500).

Almost surely, 2^{22121231113213} is an apocalyptic number.

It is an amenable number.

22121231113213 is a deficient number, since it is larger than the sum of its proper divisors (514519122787).

22121231113213 is a wasteful number, since it uses less digits than its factorization.

22121231113213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633851.

The product of its digits is 864, while the sum is 25.

Adding to 22121231113213 its reverse (31231113212122), we get a palindrome (53352344325335).

The spelling of 22121231113213 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred thirty-one million, one hundred thirteen thousand, two hundred thirteen".