222002221112221 has 192 divisors, whose sum is σ = 270464421427200. Its totient is φ = 181423984896000.

The previous prime is 222002221112149. The next prime is 222002221112327. The reversal of 222002221112221 is 122211122200222.

It is not a de Polignac number, because 222002221112221 - 2¹³ = 222002221104029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222002221112192 and 222002221112201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222002221112621) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 291724337481 + ... + 291724338241.

It is an arithmetic number, because the mean of its divisors is an integer number (1408668861600).

Almost surely, 2^{222002221112221} is an apocalyptic number.

It is an amenable number.

222002221112221 is a deficient number, since it is larger than the sum of its proper divisors (48462200314979).

222002221112221 is a wasteful number, since it uses less digits than its factorization.

222002221112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472 (or 1461 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222002221112221 its reverse (122211122200222), we get a palindrome (344213343312443).

The spelling of 222002221112221 in words is "two hundred twenty-two trillion, two billion, two hundred twenty-one million, one hundred twelve thousand, two hundred twenty-one".