111021012212 has 48 divisors (see below), whose sum is σ = 216578541312. Its totient is φ = 49363063680.

The previous prime is 111021012181. The next prime is 111021012217. The reversal of 111021012212 is 212210120111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111021012217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3983558 + ... + 4011330.

It is an arithmetic number, because the mean of its divisors is an integer number (4512052944).

Almost surely, 2^111021012212 is an apocalyptic number.

It is an amenable number.

111021012212 is a deficient number, since it is larger than the sum of its proper divisors (105557529100).

111021012212 is a wasteful number, since it uses less digits than its factorization.

111021012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29768 (or 29766 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111021012212 its reverse (212210120111), we get a palindrome (323231132323).

The spelling of 111021012212 in words is "one hundred eleven billion, twenty-one million, twelve thousand, two hundred twelve".