1011211112212 has 12 divisors (see below), whose sum is σ = 2022422224480. Its totient is φ = 433376190936.

The previous prime is 1011211112161. The next prime is 1011211112239. The reversal of 1011211112212 is 2122111121101.

1011211112212 is an admirable number.

It is a super-2 number, since 2×1011211112212² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 18057341262 + ... + 18057341317.

Almost surely, 2^{1011211112212} is an apocalyptic number.

It is an amenable number.

1011211112212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011211112212 is a wasteful number, since it uses less digits than its factorization.

1011211112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36114682590 (or 36114682588 counting only the distinct ones).

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

Adding to 1011211112212 its reverse (2122111121101), we get a palindrome (3133322233313).

The spelling of 1011211112212 in words is "one trillion, eleven billion, two hundred eleven million, one hundred twelve thousand, two hundred twelve".