2211012122212 has 12 divisors (see below), whose sum is σ = 3963643682796. Its totient is φ = 1078542498560.

The previous prime is 2211012122203. The next prime is 2211012122213. The reversal of 2211012122212 is 2122212101122.

It can be written as a sum of positive squares in 2 ways, for example, as 302121718336 + 1908890403876 = 549656^2 + 1381626^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2211012122212.

It is not an unprimeable number, because it can be changed into a prime (2211012122213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6740890453 + ... + 6740890780.

It is an arithmetic number, because the mean of its divisors is an integer number (330303640233).

Almost surely, 2^{2211012122212} is an apocalyptic number.

It is an amenable number.

2211012122212 is a deficient number, since it is larger than the sum of its proper divisors (1752631560584).

2211012122212 is a wasteful number, since it uses less digits than its factorization.

2211012122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13481781278 (or 13481781276 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2211012122212 its reverse (2122212101122), we get a palindrome (4333224223334).

The spelling of 2211012122212 in words is "two trillion, two hundred eleven billion, twelve million, one hundred twenty-two thousand, two hundred twelve".