111212210022010 has 8 divisors (see below), whose sum is σ = 200181978039636. Its totient is φ = 44484884008800.

The previous prime is 111212210021999. The next prime is 111212210022097. The reversal of 111212210022010 is 10220012212111.

It can be written as a sum of positive squares in 2 ways, for example, as 104231787103609 + 6980422918401 = 10209397^2 + 2642049^2 .

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

It is a super-2 number, since 2×111212210022010² (a number of 29 digits) contains 22 as substring.

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, 5560610501091 + ... + 5560610501110.

Almost surely, 2^{111212210022010} is an apocalyptic number.

111212210022010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111212210022010 is a deficient number, since it is larger than the sum of its proper divisors (88969768017626).

111212210022010 is a wasteful number, since it uses less digits than its factorization.

111212210022010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11121221002208.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111212210022010 its reverse (10220012212111), we get a palindrome (121432222234121).

The spelling of 111212210022010 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred ten million, twenty-two thousand, ten".