1122100101 has 8 divisors (see below), whose sum is σ = 1662370560. Its totient is φ = 748066716.

The previous prime is 1122100069. The next prime is 1122100139. The reversal of 1122100101 is 1010012211.

It is a happy number.

It is not a de Polignac number, because 1122100101 - 2⁵ = 1122100069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122100201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20779605 + ... + 20779658.

It is an arithmetic number, because the mean of its divisors is an integer number (207796320).

Almost surely, 2^1122100101 is an apocalyptic number.

It is an amenable number.

1122100101 is a deficient number, since it is larger than the sum of its proper divisors (540270459).

1122100101 is an equidigital number, since it uses as much as digits as its factorization.

1122100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41559272 (or 41559266 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1122100101 is about 33497.7626267785. The cubic root of 1122100101 is about 1039.1475080692.

Adding to 1122100101 its reverse (1010012211), we get a palindrome (2132112312).

The spelling of 1122100101 in words is "one billion, one hundred twenty-two million, one hundred thousand, one hundred one".