1211211000112 has 20 divisors (see below), whose sum is σ = 2346775772680. Its totient is φ = 605591445888.

The previous prime is 1211211000091. The next prime is 1211211000119. The reversal of 1211211000112 is 2110001121121.

It is a happy number.

It is a super-2 number, since 2×1211211000112² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211211000092 and 1211211000101.

It is not an unprimeable number, because it can be changed into a prime (1211211000119) 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, 149037 + ... + 1563532.

It is an arithmetic number, because the mean of its divisors is an integer number (117338788634).

Almost surely, 2^{1211211000112} is an apocalyptic number.

It is an amenable number.

1211211000112 is a deficient number, since it is larger than the sum of its proper divisors (1135564772568).

1211211000112 is a wasteful number, since it uses less digits than its factorization.

1211211000112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756780 (or 1756774 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1211211000112 its reverse (2110001121121), we get a palindrome (3321212121233).

The spelling of 1211211000112 in words is "one trillion, two hundred eleven billion, two hundred eleven million, one hundred twelve", and thus it is an aban number.