1122021221211 has 24 divisors (see below), whose sum is σ = 1844904462336. Its totient is φ = 650447083440.

The previous prime is 1122021221183. The next prime is 1122021221221. The reversal of 1122021221211 is 1121221202211.

1122021221211 is a `hidden beast` number, since 1 + 1 + 220 + 212 + 21 + 211 = 666.

It is not a de Polignac number, because 1122021221211 - 2⁹ = 1122021220699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122021221221) 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, 246379195 + ... + 246383748.

It is an arithmetic number, because the mean of its divisors is an integer number (76871019264).

Almost surely, 2^{1122021221211} is an apocalyptic number.

1122021221211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1122021221211 is a deficient number, since it is larger than the sum of its proper divisors (722883241125).

1122021221211 is a wasteful number, since it uses less digits than its factorization.

1122021221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492762983 (or 492762980 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1122021221211 its reverse (1121221202211), we get a palindrome (2243242423422).

The spelling of 1122021221211 in words is "one trillion, one hundred twenty-two billion, twenty-one million, two hundred twenty-one thousand, two hundred eleven".