212222321322 has 24 divisors (see below), whose sum is σ = 466538327808. Its totient is φ = 64309794120.

The previous prime is 212222321299. The next prime is 212222321341. The reversal of 212222321322 is 223123222212.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 212222321292 and 212222321301.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146157898 + ... + 146159349.

It is an arithmetic number, because the mean of its divisors is an integer number (19439096992).

Almost surely, 2^212222321322 is an apocalyptic number.

212222321322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212222321322 is an abundant number, since it is smaller than the sum of its proper divisors (254316006486).

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

212222321322 is a wasteful number, since it uses less digits than its factorization.

212222321322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292317274 (or 292317263 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

Adding to 212222321322 its reverse (223123222212), we get a palindrome (435345543534).

The spelling of 212222321322 in words is "two hundred twelve billion, two hundred twenty-two million, three hundred twenty-one thousand, three hundred twenty-two".