111210001220212 has 12 divisors (see below), whose sum is σ = 196804215643140. Its totient is φ = 54980225322176.

The previous prime is 111210001220209. The next prime is 111210001220267. The reversal of 111210001220212 is 212022100012111.

It can be written as a sum of positive squares in 2 ways, for example, as 42655476205456 + 68554525014756 = 6531116^2 + 8279766^2 .

It is a congruent 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, 156193821583 + ... + 156193822294.

It is an arithmetic number, because the mean of its divisors is an integer number (16400351303595).

Almost surely, 2^{111210001220212} is an apocalyptic number.

It is an amenable number.

111210001220212 is a deficient number, since it is larger than the sum of its proper divisors (85594214422928).

111210001220212 is a wasteful number, since it uses less digits than its factorization.

111210001220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312387643970 (or 312387643968 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111210001220212 its reverse (212022100012111), we get a palindrome (323232101232323).

The spelling of 111210001220212 in words is "one hundred eleven trillion, two hundred ten billion, one million, two hundred twenty thousand, two hundred twelve".