111012212202222 has 64 divisors (see below), whose sum is σ = 229788671489280. Its totient is φ = 35711236264704.

The previous prime is 111012212202209. The next prime is 111012212202239. The reversal of 111012212202222 is 222202212210111.

It is a super-2 number, since 2×111012212202222² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4207066513 + ... + 4207092899.

It is an arithmetic number, because the mean of its divisors is an integer number (3590447992020).

Almost surely, 2^{111012212202222} is an apocalyptic number.

111012212202222 is an abundant number, since it is smaller than the sum of its proper divisors (118776459287058).

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

111012212202222 is a wasteful number, since it uses less digits than its factorization.

111012212202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36897.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 111012212202222 its reverse (222202212210111), we get a palindrome (333214424412333).

The spelling of 111012212202222 in words is "one hundred eleven trillion, twelve billion, two hundred twelve million, two hundred two thousand, two hundred twenty-two".