202220211222 has 24 divisors (see below), whose sum is σ = 438212532576. Its totient is φ = 67396161456.

The previous prime is 202220211217. The next prime is 202220211229. The reversal of 202220211222 is 222112022202.

202220211222 is a `hidden beast` number, since 202 + 220 + 21 + 1 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202220211195 and 202220211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220211229) 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 11 ways as a sum of consecutive naturals, for example, 762958 + ... + 993249.

It is an arithmetic number, because the mean of its divisors is an integer number (18258855524).

Almost surely, 2^202220211222 is an apocalyptic number.

202220211222 is an abundant number, since it is smaller than the sum of its proper divisors (235992321354).

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

202220211222 is a wasteful number, since it uses less digits than its factorization.

202220211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762612 (or 1762609 counting only the distinct ones).

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

Adding to 202220211222 its reverse (222112022202), we get a palindrome (424332233424).

The spelling of 202220211222 in words is "two hundred two billion, two hundred twenty million, two hundred eleven thousand, two hundred twenty-two".