1121122401 has 24 divisors (see below), whose sum is σ = 1740150720. Its totient is φ = 640174752.

The previous prime is 1121122369. The next prime is 1121122403. The reversal of 1121122401 is 1042211211.

It is not a de Polignac number, because 1121122401 - 2⁵ = 1121122369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121122403) 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, 362580 + ... + 365658.

It is an arithmetic number, because the mean of its divisors is an integer number (72506280).

Almost surely, 2^1121122401 is an apocalyptic number.

It is an amenable number.

1121122401 is a deficient number, since it is larger than the sum of its proper divisors (619028319).

1121122401 is a wasteful number, since it uses less digits than its factorization.

1121122401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5573 (or 5566 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1121122401 is about 33483.1659345409. The cubic root of 1121122401 is about 1038.8456129181.

Adding to 1121122401 its reverse (1042211211), we get a palindrome (2163333612).

The spelling of 1121122401 in words is "one billion, one hundred twenty-one million, one hundred twenty-two thousand, four hundred one".