122212022211 has 64 divisors (see below), whose sum is σ = 194780505600. Its totient is φ = 75454460928.

The previous prime is 122212022203. The next prime is 122212022287. The reversal of 122212022211 is 112220212221.

It is a happy number.

It is not a de Polignac number, because 122212022211 - 2³ = 122212022203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122212020211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39639076 + ... + 39642158.

It is an arithmetic number, because the mean of its divisors is an integer number (3043445400).

Almost surely, 2^122212022211 is an apocalyptic number.

122212022211 is a deficient number, since it is larger than the sum of its proper divisors (72568483389).

122212022211 is a wasteful number, since it uses less digits than its factorization.

122212022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4465 (or 4459 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122212022211 its reverse (112220212221), we get a palindrome (234432234432).

The spelling of 122212022211 in words is "one hundred twenty-two billion, two hundred twelve million, twenty-two thousand, two hundred eleven".