222031133212121 has 4 divisors (see below), whose sum is σ = 222701922134544. Its totient is φ = 221360344289700.

The previous prime is 222031133212117. The next prime is 222031133212123. The reversal of 222031133212121 is 121212331130222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222031133212121 - 2² = 222031133212117 is a prime.

It is a super-3 number, since 3×222031133212121³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222031133212123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335394460715 + ... + 335394461376.

It is an arithmetic number, because the mean of its divisors is an integer number (55675480533636).

Almost surely, 2^{222031133212121} is an apocalyptic number.

It is an amenable number.

222031133212121 is a deficient number, since it is larger than the sum of its proper divisors (670788922423).

222031133212121 is an equidigital number, since it uses as much as digits as its factorization.

222031133212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670788922422.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 222031133212121 its reverse (121212331130222), we get a palindrome (343243464342343).

The spelling of 222031133212121 in words is "two hundred twenty-two trillion, thirty-one billion, one hundred thirty-three million, two hundred twelve thousand, one hundred twenty-one".