1211130022 has 4 divisors (see below), whose sum is σ = 1816695036. Its totient is φ = 605565010.

The previous prime is 1211130007. The next prime is 1211130023. The reversal of 1211130022 is 2200311121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1211129984 and 1211130011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211130023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302782504 + ... + 302782507.

It is an arithmetic number, because the mean of its divisors is an integer number (454173759).

Almost surely, 2^1211130022 is an apocalyptic number.

1211130022 is a deficient number, since it is larger than the sum of its proper divisors (605565014).

1211130022 is an equidigital number, since it uses as much as digits as its factorization.

1211130022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605565013.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1211130022 is about 34801.2933955047. The cubic root of 1211130022 is about 1065.9338564115.

Adding to 1211130022 its reverse (2200311121), we get a palindrome (3411441143).

The spelling of 1211130022 in words is "one billion, two hundred eleven million, one hundred thirty thousand, twenty-two".