111021214 has 4 divisors (see below), whose sum is σ = 166531824. Its totient is φ = 55510606.

The previous prime is 111021151. The next prime is 111021223. The reversal of 111021214 is 412120111.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 111021194 and 111021203.

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, 27755302 + ... + 27755305.

It is an arithmetic number, because the mean of its divisors is an integer number (41632956).

Almost surely, 2^111021214 is an apocalyptic number.

111021214 is a deficient number, since it is larger than the sum of its proper divisors (55510610).

111021214 is an equidigital number, since it uses as much as digits as its factorization.

111021214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55510609.

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

The square root of 111021214 is about 10536.6604766406. The cubic root of 111021214 is about 480.6201677170.

Adding to 111021214 its reverse (412120111), we get a palindrome (523141325).

The spelling of 111021214 in words is "one hundred eleven million, twenty-one thousand, two hundred fourteen".