1331332022121 has 16 divisors (see below), whose sum is σ = 1793899433088. Its totient is φ = 878164646400.

The previous prime is 1331332022117. The next prime is 1331332022159. The reversal of 1331332022121 is 1212202331331.

It is not a de Polignac number, because 1331332022121 - 2² = 1331332022117 is a prime.

It is a super-4 number, since 4×1331332022121⁴ (a number of 50 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331332022091 and 1331332022100.

It is not an unprimeable number, because it can be changed into a prime (1331332022161) 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, 445131 + ... + 1691391.

It is an arithmetic number, because the mean of its divisors is an integer number (112118714568).

Almost surely, 2^{1331332022121} is an apocalyptic number.

It is an amenable number.

1331332022121 is a deficient number, since it is larger than the sum of its proper divisors (462567410967).

1331332022121 is a wasteful number, since it uses less digits than its factorization.

1331332022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250032.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1331332022121 its reverse (1212202331331), we get a palindrome (2543534353452).

The spelling of 1331332022121 in words is "one trillion, three hundred thirty-one billion, three hundred thirty-two million, twenty-two thousand, one hundred twenty-one".