9122021331 has 16 divisors (see below), whose sum is σ = 12239830944. Its totient is φ = 6042819584.

The previous prime is 9122021303. The next prime is 9122021341. The reversal of 9122021331 is 1331202219.

It is a cyclic number.

It is not a de Polignac number, because 9122021331 - 2⁵ = 9122021299 is a prime.

It is a super-2 number, since 2×9122021331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9122021341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1219555 + ... + 1227011.

It is an arithmetic number, because the mean of its divisors is an integer number (764989434).

Almost surely, 2^9122021331 is an apocalyptic number.

9122021331 is a deficient number, since it is larger than the sum of its proper divisors (3117809613).

9122021331 is a wasteful number, since it uses less digits than its factorization.

9122021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9990.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 9122021331 is about 95509.2735340396. The cubic root of 9122021331 is about 2089.4421968589.

The spelling of 9122021331 in words is "nine billion, one hundred twenty-two million, twenty-one thousand, three hundred thirty-one".