211222220322 has 8 divisors (see below), whose sum is σ = 422444440656. Its totient is φ = 70407406772.

The previous prime is 211222220263. The next prime is 211222220387. The reversal of 211222220322 is 223022222112.

It is a sphenic number, since it is the product of 3 distinct primes.

211222220322 is an admirable number.

It is a super-2 number, since 2×211222220322² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17601851688 + ... + 17601851699.

It is an arithmetic number, because the mean of its divisors is an integer number (52805555082).

Almost surely, 2^211222220322 is an apocalyptic number.

211222220322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

211222220322 is a wasteful number, since it uses less digits than its factorization.

211222220322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35203703392.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 211222220322 its reverse (223022222112), we get a palindrome (434244442434).

The spelling of 211222220322 in words is "two hundred eleven billion, two hundred twenty-two million, two hundred twenty thousand, three hundred twenty-two".