122211020212 has 12 divisors (see below), whose sum is σ = 214048563876. Its totient is φ = 61054287680.

The previous prime is 122211020209. The next prime is 122211020227. The reversal of 122211020212 is 212020112221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 65845612816 + 56365407396 = 256604^2 + 237414^2 .

It is a super-2 number, since 2×122211020212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 12800239 + ... + 12809782.

It is an arithmetic number, because the mean of its divisors is an integer number (17837380323).

Almost surely, 2^122211020212 is an apocalyptic number.

It is an amenable number.

122211020212 is a deficient number, since it is larger than the sum of its proper divisors (91837543664).

122211020212 is a wasteful number, since it uses less digits than its factorization.

122211020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25611218 (or 25611216 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122211020212 its reverse (212020112221), we get a palindrome (334231132433).

The spelling of 122211020212 in words is "one hundred twenty-two billion, two hundred eleven million, twenty thousand, two hundred twelve".