2111210111012 has 6 divisors (see below), whose sum is σ = 3694617694278. Its totient is φ = 1055605055504.

The previous prime is 2111210110987. The next prime is 2111210111041. The reversal of 2111210111012 is 2101110121112.

It can be written as a sum of positive squares in only one way, i.e., 1841790979876 + 269419131136 = 1357126^2 + 519056^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263901263873 + ... + 263901263880.

It is an arithmetic number, because the mean of its divisors is an integer number (615769615713).

Almost surely, 2^{2111210111012} is an apocalyptic number.

It is an amenable number.

2111210111012 is a deficient number, since it is larger than the sum of its proper divisors (1583407583266).

2111210111012 is a wasteful number, since it uses less digits than its factorization.

2111210111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527802527757 (or 527802527755 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 2111210111012 its reverse (2101110121112), we get a palindrome (4212320232124).

It can be divided in two parts, 2111210 and 111012, that added together give a palindrome (2222222).

The spelling of 2111210111012 in words is "two trillion, one hundred eleven billion, two hundred ten million, one hundred eleven thousand, twelve".