1122201011100 has 144 divisors (see below), whose sum is σ = 3531284920800. Its totient is φ = 273499008000.

The previous prime is 1122201011083. The next prime is 1122201011117. The reversal of 1122201011100 is 11101022211.

It is an interprime number because it is at equal distance from previous prime (1122201011083) and next prime (1122201011117).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1030575 + ... + 1818374.

It is an arithmetic number, because the mean of its divisors is an integer number (24522811950).

Almost surely, 2^{1122201011100} is an apocalyptic number.

1122201011100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122201011100 is an abundant number, since it is smaller than the sum of its proper divisors (2409083909700).

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

1122201011100 is a wasteful number, since it uses less digits than its factorization.

1122201011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849080 (or 2849073 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1122201011100 its reverse (11101022211), we get a palindrome (1133302033311).

The spelling of 1122201011100 in words is "one trillion, one hundred twenty-two billion, two hundred one million, eleven thousand, one hundred".