111210212022 has 128 divisors (see below), whose sum is σ = 281492112384. Its totient is φ = 28502419968.

The previous prime is 111210212021. The next prime is 111210212023. The reversal of 111210212022 is 220212012111.

It is an interprime number because it is at equal distance from previous prime (111210212021) and next prime (111210212023).

It is a super-2 number, since 2×111210212022² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111210211992 and 111210212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111210212021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19128388 + ... + 19134200.

It is an arithmetic number, because the mean of its divisors is an integer number (2199157128).

Almost surely, 2^111210212022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111210212022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140746056192).

111210212022 is an abundant number, since it is smaller than the sum of its proper divisors (170281900362).

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

111210212022 is a wasteful number, since it uses less digits than its factorization.

111210212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6822.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111210212022 its reverse (220212012111), we get a palindrome (331422224133).

The spelling of 111210212022 in words is "one hundred eleven billion, two hundred ten million, two hundred twelve thousand, twenty-two".