202122201222 has 12 divisors (see below), whose sum is σ = 437931436020. Its totient is φ = 67374067068.

The previous prime is 202122201139. The next prime is 202122201227. The reversal of 202122201222 is 222102221202.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11229011179 = 202122201222 / (2 + 0 + 2 + 1 + 2 + 2 + 2 + 0 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 202122201195 and 202122201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202122201227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5614505572 + ... + 5614505607.

It is an arithmetic number, because the mean of its divisors is an integer number (36494286335).

Almost surely, 2^202122201222 is an apocalyptic number.

202122201222 is an abundant number, since it is smaller than the sum of its proper divisors (235809234798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202122201222 is a wasteful number, since it uses less digits than its factorization.

202122201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11229011187 (or 11229011184 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 202122201222 its reverse (222102221202), we get a palindrome (424224422424).

The spelling of 202122201222 in words is "two hundred two billion, one hundred twenty-two million, two hundred one thousand, two hundred twenty-two".