111012001121212 has 24 divisors (see below), whose sum is σ = 194300691575760. Its totient is φ = 55497518332800.

The previous prime is 111012001121209. The next prime is 111012001121239. The reversal of 111012001121212 is 212121100210111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348812462 + ... + 1348894762.

It is an arithmetic number, because the mean of its divisors is an integer number (8095862148990).

Almost surely, 2^{111012001121212} is an apocalyptic number.

It is an amenable number.

111012001121212 is a deficient number, since it is larger than the sum of its proper divisors (83288690454548).

111012001121212 is a wasteful number, since it uses less digits than its factorization.

111012001121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129741 (or 129739 counting only the distinct ones).

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

Adding to 111012001121212 its reverse (212121100210111), we get a palindrome (323133101331323).

The spelling of 111012001121212 in words is "one hundred eleven trillion, twelve billion, one million, one hundred twenty-one thousand, two hundred twelve".