1122100219 has 4 divisors (see below), whose sum is σ = 1160793360. Its totient is φ = 1083407080.

The previous prime is 1122100201. The next prime is 1122100289. The reversal of 1122100219 is 9120012211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1122100219 - 2⁹ = 1122099707 is a prime.

It is a super-2 number, since 2×1122100219² = 2518217802959695922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122100196 and 1122100205.

It is not an unprimeable number, because it can be changed into a prime (1122100289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19346527 + ... + 19346584.

It is an arithmetic number, because the mean of its divisors is an integer number (290198340).

Almost surely, 2^1122100219 is an apocalyptic number.

1122100219 is a deficient number, since it is larger than the sum of its proper divisors (38693141).

1122100219 is an equidigital number, since it uses as much as digits as its factorization.

1122100219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38693140.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1122100219 is about 33497.7643880901. The cubic root of 1122100219 is about 1039.1475444948.

The spelling of 1122100219 in words is "one billion, one hundred twenty-two million, one hundred thousand, two hundred nineteen".