22232211212121 has 8 divisors (see below), whose sum is σ = 29653075711104. Its totient is φ = 14816410427280.

The previous prime is 22232211212119. The next prime is 22232211212143. The reversal of 22232211212121 is 12121211223222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22232211212121 - 2¹ = 22232211212119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22232211212091 and 22232211212100.

It is not an unprimeable number, because it can be changed into a prime (22232211212921) 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, 1265918290 + ... + 1265935851.

It is an arithmetic number, because the mean of its divisors is an integer number (3706634463888).

Almost surely, 2^{22232211212121} is an apocalyptic number.

It is an amenable number.

22232211212121 is a deficient number, since it is larger than the sum of its proper divisors (7420864498983).

22232211212121 is a wasteful number, since it uses less digits than its factorization.

22232211212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531857071.

The product of its digits is 768, while the sum is 24.

Adding to 22232211212121 its reverse (12121211223222), we get a palindrome (34353422435343).

The spelling of 22232211212121 in words is "twenty-two trillion, two hundred thirty-two billion, two hundred eleven million, two hundred twelve thousand, one hundred twenty-one".