111002021212 has 6 divisors (see below), whose sum is σ = 194253537128. Its totient is φ = 55501010604.

The previous prime is 111002021177. The next prime is 111002021231. The reversal of 111002021212 is 212120200111.

It is a junction number, because it is equal to n+sod(n) for n = 111002021192 and 111002021201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13875252648 + ... + 13875252655.

Almost surely, 2^111002021212 is an apocalyptic number.

It is an amenable number.

111002021212 is a deficient number, since it is larger than the sum of its proper divisors (83251515916).

111002021212 is a wasteful number, since it uses less digits than its factorization.

111002021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27750505307 (or 27750505305 counting only the distinct ones).

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

Adding to 111002021212 its reverse (212120200111), we get a palindrome (323122221323).

The spelling of 111002021212 in words is "one hundred eleven billion, two million, twenty-one thousand, two hundred twelve".