201111202012 has 12 divisors (see below), whose sum is σ = 402222404080. Its totient is φ = 86190515136.

The previous prime is 201111202009. The next prime is 201111202013. The reversal of 201111202012 is 210202111102.

201111202012 is an admirable number.

It is a super-2 number, since 2×201111202012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201111201983 and 201111202001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201111202013) 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, 3591271437 + ... + 3591271492.

Almost surely, 2^201111202012 is an apocalyptic number.

It is an amenable number.

201111202012 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.

201111202012 is a wasteful number, since it uses less digits than its factorization.

201111202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7182542940 (or 7182542938 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201111202012 its reverse (210202111102), we get a palindrome (411313313114).

The spelling of 201111202012 in words is "two hundred one billion, one hundred eleven million, two hundred two thousand, twelve".