111212212130 has 32 divisors (see below), whose sum is σ = 202616636544. Its totient is φ = 43947121536.

The previous prime is 111212212129. The next prime is 111212212141. The reversal of 111212212130 is 31212212111.

It is a happy number.

It is a super-3 number, since 3×111212212130³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 111212212099 and 111212212108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67934 + ... + 476486.

It is an arithmetic number, because the mean of its divisors is an integer number (6331769892).

Almost surely, 2^111212212130 is an apocalyptic number.

111212212130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111212212130 is a deficient number, since it is larger than the sum of its proper divisors (91404424414).

111212212130 is a wasteful number, since it uses less digits than its factorization.

111212212130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408890.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111212212130 its reverse (31212212111), we get a palindrome (142424424241).

The spelling of 111212212130 in words is "one hundred eleven billion, two hundred twelve million, two hundred twelve thousand, one hundred thirty".