212022221202 has 72 divisors (see below), whose sum is σ = 509659598448. Its totient is φ = 63648628560.

The previous prime is 212022221179. The next prime is 212022221207. The reversal of 212022221202 is 202122220212.

212022221202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (212022221207) 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 35 ways as a sum of consecutive naturals, for example, 221848 + ... + 687939.

It is an arithmetic number, because the mean of its divisors is an integer number (7078605534).

Almost surely, 2^212022221202 is an apocalyptic number.

212022221202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212022221202 is an abundant number, since it is smaller than the sum of its proper divisors (297637377246).

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

212022221202 is a wasteful number, since it uses less digits than its factorization.

212022221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909924 (or 909910 counting only the distinct ones).

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

Adding to 212022221202 its reverse (202122220212), we get a palindrome (414144441414).

The spelling of 212022221202 in words is "two hundred twelve billion, twenty-two million, two hundred twenty-one thousand, two hundred two".