111212212202 has 64 divisors (see below), whose sum is σ = 216649520640. Its totient is φ = 41610184704.

The previous prime is 111212212171. The next prime is 111212212211. The reversal of 111212212202 is 202212212111.

111212212202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×111212212202² (a number of 23 digits) contains 22 as substring.

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, 223298 + ... + 521810.

It is an arithmetic number, because the mean of its divisors is an integer number (3385148760).

Almost surely, 2^111212212202 is an apocalyptic number.

111212212202 is a deficient number, since it is larger than the sum of its proper divisors (105437308438).

111212212202 is a wasteful number, since it uses less digits than its factorization.

111212212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298647.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111212212202 its reverse (202212212111), we get a palindrome (313424424313).

Subtracting 111212212202 from its reverse (202212212111), we obtain a palindrome (90999999909).

The spelling of 111212212202 in words is "one hundred eleven billion, two hundred twelve million, two hundred twelve thousand, two hundred two".