2111121012212 has 6 divisors (see below), whose sum is σ = 3694461771378. Its totient is φ = 1055560506104.

The previous prime is 2111121012211. The next prime is 2111121012257. The reversal of 2111121012212 is 2122101211112.

It can be written as a sum of positive squares in only one way, i.e., 1981264565476 + 129856446736 = 1407574^2 + 360356^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111121012211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263890126523 + ... + 263890126530.

It is an arithmetic number, because the mean of its divisors is an integer number (615743628563).

Almost surely, 2^{2111121012212} is an apocalyptic number.

It is an amenable number.

2111121012212 is a deficient number, since it is larger than the sum of its proper divisors (1583340759166).

2111121012212 is a wasteful number, since it uses less digits than its factorization.

2111121012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527780253057 (or 527780253055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2111121012212 its reverse (2122101211112), we get a palindrome (4233222223324).

The spelling of 2111121012212 in words is "two trillion, one hundred eleven billion, one hundred twenty-one million, twelve thousand, two hundred twelve".