12211121011112 has 8 divisors (see below), whose sum is σ = 22895851895850. Its totient is φ = 6105560505552.

The previous prime is 12211121011003. The next prime is 12211121011123. The reversal of 12211121011112 is 21111012111221.

It can be written as a sum of positive squares in only one way, i.e., 11599105816516 + 612015194596 = 3405746^2 + 782314^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12211121011112² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 763195063187 + ... + 763195063202.

Almost surely, 2^{12211121011112} is an apocalyptic number.

It is an amenable number.

12211121011112 is a deficient number, since it is larger than the sum of its proper divisors (10684730884738).

12211121011112 is a wasteful number, since it uses less digits than its factorization.

12211121011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526390126395 (or 1526390126391 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 12211121011112 its reverse (21111012111221), we get a palindrome (33322133122333).

The spelling of 12211121011112 in words is "twelve trillion, two hundred eleven billion, one hundred twenty-one million, eleven thousand, one hundred twelve".