22223212332121 has 8 divisors (see below), whose sum is σ = 22225604999040. Its totient is φ = 22220819835312.

The previous prime is 22223212332107. The next prime is 22223212332187. The reversal of 22223212332121 is 12123321232222.

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 22223212332121 - 2²¹ = 22223210234969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22223212332121.

It is not an unprimeable number, because it can be changed into a prime (22223212332521) 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, 716561811 + ... + 716592823.

It is an arithmetic number, because the mean of its divisors is an integer number (2778200624880).

Almost surely, 2^{22223212332121} is an apocalyptic number.

It is an amenable number.

22223212332121 is a deficient number, since it is larger than the sum of its proper divisors (2392666919).

22223212332121 is a wasteful number, since it uses less digits than its factorization.

22223212332121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85055.

The product of its digits is 6912, while the sum is 28.

Adding to 22223212332121 its reverse (12123321232222), we get a palindrome (34346533564343).

The spelling of 22223212332121 in words is "twenty-two trillion, two hundred twenty-three billion, two hundred twelve million, three hundred thirty-two thousand, one hundred twenty-one".