1000122331 has 8 divisors (see below), whose sum is σ = 1084918464. Its totient is φ = 916449600.

The previous prime is 1000122313. The next prime is 1000122367. The reversal of 1000122331 is 1332210001.

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 1000122331 - 2¹¹ = 1000120283 is a prime.

It is a super-2 number, since 2×1000122331² = 2000489353929747122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000128331) 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, 278995 + ... + 282556.

It is an arithmetic number, because the mean of its divisors is an integer number (135614808).

Almost surely, 2^1000122331 is an apocalyptic number.

1000122331 is a deficient number, since it is larger than the sum of its proper divisors (84796133).

1000122331 is a wasteful number, since it uses less digits than its factorization.

1000122331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561701.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1000122331 is about 31624.7107654758. The cubic root of 1000122331 is about 1000.0407753373.

Adding to 1000122331 its reverse (1332210001), we get a palindrome (2332332332).

The spelling of 1000122331 in words is "one billion, one hundred twenty-two thousand, three hundred thirty-one".