111101022210100 has 72 divisors (see below), whose sum is σ = 260301984841080. Its totient is φ = 40916460910080.

The previous prime is 111101022210071. The next prime is 111101022210103. The reversal of 111101022210100 is 1012220101111.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 97067697062436 + 14033325147664 = 9852294^2 + 3746108^2 .

It is a super-2 number, since 2×111101022210100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101022210103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109343047 + ... + 110354446.

It is an arithmetic number, because the mean of its divisors is an integer number (3615305345015).

Almost surely, 2^{111101022210100} is an apocalyptic number.

111101022210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111101022210100 is an abundant number, since it is smaller than the sum of its proper divisors (149200962630980).

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

111101022210100 is a wasteful number, since it uses less digits than its factorization.

111101022210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219697909 (or 219697902 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111101022210100 its reverse (1012220101111), we get a palindrome (112113242311211).

The spelling of 111101022210100 in words is "one hundred eleven trillion, one hundred one billion, twenty-two million, two hundred ten thousand, one hundred".