111212310212 has 12 divisors (see below), whose sum is σ = 194709742080. Its totient is φ = 55580955336.

The previous prime is 111212310203. The next prime is 111212310233. The reversal of 111212310212 is 212013212111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6290012 + ... + 6307667.

It is an arithmetic number, because the mean of its divisors is an integer number (16225811840).

Almost surely, 2^111212310212 is an apocalyptic number.

It is an amenable number.

111212310212 is a deficient number, since it is larger than the sum of its proper divisors (83497431868).

111212310212 is a wasteful number, since it uses less digits than its factorization.

111212310212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12599890 (or 12599888 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111212310212 its reverse (212013212111), we get a palindrome (323225522323).

The spelling of 111212310212 in words is "one hundred eleven billion, two hundred twelve million, three hundred ten thousand, two hundred twelve".