1122022121 has 8 divisors (see below), whose sum is σ = 1231101504. Its totient is φ = 1014122320.

The previous prime is 1122022081. The next prime is 1122022163. The reversal of 1122022121 is 1212202211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122022121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122022096 and 1122022105.

It is not an unprimeable number, because it can be changed into a prime (1122022721) 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, 292901 + ... + 296706.

It is an arithmetic number, because the mean of its divisors is an integer number (153887688).

Almost surely, 2^1122022121 is an apocalyptic number.

1122022121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1122022121 is a deficient number, since it is larger than the sum of its proper divisors (109079383).

1122022121 is a wasteful number, since it uses less digits than its factorization.

1122022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589791.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1122022121 is about 33496.5986482210. The cubic root of 1122022121 is about 1039.1234357665.

Adding to 1122022121 its reverse (1212202211), we get a palindrome (2334224332).

The spelling of 1122022121 in words is "one billion, one hundred twenty-two million, twenty-two thousand, one hundred twenty-one".