1121262501 has 8 divisors (see below), whose sum is σ = 1508247360. Its totient is φ = 740892992.

The previous prime is 1121262451. The next prime is 1121262517. The reversal of 1121262501 is 1052621211.

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 1121262501 - 2⁹ = 1121261989 is a prime.

It is a super-2 number, since 2×1121262501² = 2514459192297550002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121262001) 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, 1653441 + ... + 1654118.

It is an arithmetic number, because the mean of its divisors is an integer number (188530920).

Almost surely, 2^1121262501 is an apocalyptic number.

It is an amenable number.

1121262501 is a deficient number, since it is larger than the sum of its proper divisors (386984859).

1121262501 is a wasteful number, since it uses less digits than its factorization.

1121262501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307675.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1121262501 is about 33485.2579652599. The cubic root of 1121262501 is about 1038.8888839020. Note that the first 5 decimals are identical.

Adding to 1121262501 its reverse (1052621211), we get a palindrome (2173883712).

The spelling of 1121262501 in words is "one billion, one hundred twenty-one million, two hundred sixty-two thousand, five hundred one".