111212022 has 16 divisors (see below), whose sum is σ = 223088112. Its totient is φ = 36960000.

The previous prime is 111212021. The next prime is 111212041. The reversal of 111212022 is 220212111.

It is a super-2 number, since 2×111212022² = 24736227674656968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111211989 and 111212007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111212021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25479 + ... + 29522.

It is an arithmetic number, because the mean of its divisors is an integer number (13943007).

Almost surely, 2^111212022 is an apocalyptic number.

111212022 is an abundant number, since it is smaller than the sum of its proper divisors (111876090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111212022 is a wasteful number, since it uses less digits than its factorization.

111212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55343.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 111212022 is about 10545.7110713313. The cubic root of 111212022 is about 480.8953514182.

Adding to 111212022 its reverse (220212111), we get a palindrome (331424133).

The spelling of 111212022 in words is "one hundred eleven million, two hundred twelve thousand, twenty-two".