1121922211 has 8 divisors (see below), whose sum is σ = 1126963584. Its totient is φ = 1116892800.

The previous prime is 1121922161. The next prime is 1121922223. The reversal of 1121922211 is 1122291211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121922211 - 2¹⁹ = 1121397923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121922281) 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, 220846 + ... + 225868.

It is an arithmetic number, because the mean of its divisors is an integer number (140870448).

Almost surely, 2^1121922211 is an apocalyptic number.

1121922211 is a deficient number, since it is larger than the sum of its proper divisors (5041373).

1121922211 is an equidigital number, since it uses as much as digits as its factorization.

1121922211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5981.

The product of its digits is 144, while the sum is 22.

The square root of 1121922211 is about 33495.1072695700. The cubic root of 1121922211 is about 1039.0925920775.

The spelling of 1121922211 in words is "one billion, one hundred twenty-one million, nine hundred twenty-two thousand, two hundred eleven".