111220210010 has 64 divisors (see below), whose sum is σ = 254343849984. Its totient is φ = 34063891200.

The previous prime is 111220209983. The next prime is 111220210019. The reversal of 111220210010 is 10012022111.

It is a super-2 number, since 2×111220210010² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111220209973 and 111220210000.

It is not an unprimeable number, because it can be changed into a prime (111220210019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1943081 + ... + 1999500.

It is an arithmetic number, because the mean of its divisors is an integer number (3974122656).

Almost surely, 2^111220210010 is an apocalyptic number.

111220210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111220210010 is an abundant number, since it is smaller than the sum of its proper divisors (143123639974).

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

111220210010 is a wasteful number, since it uses less digits than its factorization.

111220210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3942639.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111220210010 its reverse (10012022111), we get a palindrome (121232232121).

The spelling of 111220210010 in words is "one hundred eleven billion, two hundred twenty million, two hundred ten thousand, ten".