111020212210 has 8 divisors (see below), whose sum is σ = 199836381996. Its totient is φ = 44408084880.

The previous prime is 111020212201. The next prime is 111020212217. The reversal of 111020212210 is 12212020111.

It can be written as a sum of positive squares in 2 ways, for example, as 110811091689 + 209120521 = 332883^2 + 14461^2 .

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

It is not an unprimeable number, because it can be changed into a prime (111020212217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5551010601 + ... + 5551010620.

Almost surely, 2^111020212210 is an apocalyptic number.

111020212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111020212210 is a deficient number, since it is larger than the sum of its proper divisors (88816169786).

111020212210 is a wasteful number, since it uses less digits than its factorization.

111020212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11102021228.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111020212210 its reverse (12212020111), we get a palindrome (123232232321).

The spelling of 111020212210 in words is "one hundred eleven billion, twenty million, two hundred twelve thousand, two hundred ten".