111220201212010 has 64 divisors (see below), whose sum is σ = 225251100716544. Its totient is φ = 39191291968000.

The previous prime is 111220201211939. The next prime is 111220201212011. The reversal of 111220201212010 is 10212102022111.

It is not an unprimeable number, because it can be changed into a prime (111220201212011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105975907 + ... + 107020246.

It is an arithmetic number, because the mean of its divisors is an integer number (3519548448696).

Almost surely, 2^{111220201212010} is an apocalyptic number.

111220201212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111220201212010 is an abundant number, since it is smaller than the sum of its proper divisors (114030899504534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111220201212010 is a wasteful number, since it uses less digits than its factorization.

111220201212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212996319.

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

Adding to 111220201212010 its reverse (10212102022111), we get a palindrome (121432303234121).

The spelling of 111220201212010 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred one million, two hundred twelve thousand, ten".