222121023311 has 16 divisors (see below), whose sum is σ = 246323737248. Its totient is φ = 198587635200.

The previous prime is 222121023227. The next prime is 222121023347. The reversal of 222121023311 is 113320121222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222121023311 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 (222121020311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5180915 + ... + 5223611.

It is an arithmetic number, because the mean of its divisors is an integer number (15395233578).

Almost surely, 2^222121023311 is an apocalyptic number.

222121023311 is a deficient number, since it is larger than the sum of its proper divisors (24202713937).

222121023311 is a wasteful number, since it uses less digits than its factorization.

222121023311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50522.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 222121023311 its reverse (113320121222), we get a palindrome (335441144533).

The spelling of 222121023311 in words is "two hundred twenty-two billion, one hundred twenty-one million, twenty-three thousand, three hundred eleven".