1011211112012 has 6 divisors (see below), whose sum is σ = 1769619446028. Its totient is φ = 505605556004.

The previous prime is 1011211112011. The next prime is 1011211112033. The reversal of 1011211112012 is 2102111121101.

It is a super-2 number, since 2×1011211112012² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1011211112011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126401388998 + ... + 126401389005.

It is an arithmetic number, because the mean of its divisors is an integer number (294936574338).

Almost surely, 2^{1011211112012} is an apocalyptic number.

It is an amenable number.

1011211112012 is a deficient number, since it is larger than the sum of its proper divisors (758408334016).

1011211112012 is a wasteful number, since it uses less digits than its factorization.

1011211112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252802778007 (or 252802778005 counting only the distinct ones).

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

Adding to 1011211112012 its reverse (2102111121101), we get a palindrome (3113322233113).

The spelling of 1011211112012 in words is "one trillion, eleven billion, two hundred eleven million, one hundred twelve thousand, twelve".