111021121212110 has 8 divisors (see below), whose sum is σ = 199838018181816. Its totient is φ = 44408448484840.

The previous prime is 111021121212109. The next prime is 111021121212137. The reversal of 111021121212110 is 11212121120111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×111021121212110² (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 3 ways as a sum of consecutive naturals, for example, 5551056060596 + ... + 5551056060615.

It is an arithmetic number, because the mean of its divisors is an integer number (24979752272727).

Almost surely, 2^{111021121212110} is an apocalyptic number.

111021121212110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111021121212110 is a deficient number, since it is larger than the sum of its proper divisors (88816896969706).

111021121212110 is a wasteful number, since it uses less digits than its factorization.

111021121212110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11102112121218.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111021121212110 its reverse (11212121120111), we get a palindrome (122233242332221).

The spelling of 111021121212110 in words is "one hundred eleven trillion, twenty-one billion, one hundred twenty-one million, two hundred twelve thousand, one hundred ten".