122211022212 has 30 divisors (see below), whose sum is σ = 319483753358. Its totient is φ = 40737007296.

The previous prime is 122211022211. The next prime is 122211022229. The reversal of 122211022212 is 212220112221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 119153374596 + 3057647616 = 345186^2 + 55296^2 .

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 (122211022211) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 188596933 + ... + 188597580.

Almost surely, 2^122211022212 is an apocalyptic number.

122211022212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122211022212 is an abundant number, since it is smaller than the sum of its proper divisors (197272731146).

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

122211022212 is a wasteful number, since it uses less digits than its factorization.

122211022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377194529 (or 377194518 counting only the distinct ones).

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

Adding to 122211022212 its reverse (212220112221), we get a palindrome (334431134433).

Subtracting 122211022212 from its reverse (212220112221), we obtain a palindrome (90009090009).

The spelling of 122211022212 in words is "one hundred twenty-two billion, two hundred eleven million, twenty-two thousand, two hundred twelve".