111220201221010 has 32 divisors (see below), whose sum is σ = 229022597704320. Its totient is φ = 38094847886592.

The previous prime is 111220201221007. The next prime is 111220201221013. The reversal of 111220201221010 is 10122102022111.

It is an interprime number because it is at equal distance from previous prime (111220201221007) and next prime (111220201221013).

It is not an unprimeable number, because it can be changed into a prime (111220201221013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787273284 + ... + 787414543.

It is an arithmetic number, because the mean of its divisors is an integer number (7156956178260).

Almost surely, 2^{111220201221010} is an apocalyptic number.

111220201221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111220201221010 is an abundant number, since it is smaller than the sum of its proper divisors (117802396483310).

111220201221010 is a wasteful number, since it uses less digits than its factorization.

111220201221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574688850.

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

Adding to 111220201221010 its reverse (10122102022111), we get a palindrome (121342303243121).

The spelling of 111220201221010 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred one million, two hundred twenty-one thousand, ten".