222132011223121 has 4 divisors (see below), whose sum is σ = 222419374757172. Its totient is φ = 221844647689072.

The previous prime is 222132011223103. The next prime is 222132011223137. The reversal of 222132011223121 is 121322110231222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 136079690702400 + 86052320520721 = 11665320^2 + 9276439^2 .

It is a cyclic number.

It is not a de Polignac number, because 222132011223121 - 2⁹ = 222132011222609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222132011220121) 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, 143681765866 + ... + 143681767411.

It is an arithmetic number, because the mean of its divisors is an integer number (55604843689293).

Almost surely, 2^{222132011223121} is an apocalyptic number.

It is an amenable number.

222132011223121 is a deficient number, since it is larger than the sum of its proper divisors (287363534051).

222132011223121 is an equidigital number, since it uses as much as digits as its factorization.

222132011223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287363534050.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 222132011223121 its reverse (121322110231222), we get a palindrome (343454121454343).

The spelling of 222132011223121 in words is "two hundred twenty-two trillion, one hundred thirty-two billion, eleven million, two hundred twenty-three thousand, one hundred twenty-one".