1012332121 has 2 divisors, whose sum is σ = 1012332122. Its totient is φ = 1012332120.

The previous prime is 1012332091. The next prime is 1012332137. The reversal of 1012332121 is 1212332101.

It is an a-pointer prime, because the next prime (1012332137) can be obtained adding 1012332121 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 547326025 + 465006096 = 23395^2 + 21564^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012332121 - 2¹⁹ = 1011807833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012332095 and 1012332104.

It is not a weakly prime, because it can be changed into another prime (1012332221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506166060 + 506166061.

It is an arithmetic number, because the mean of its divisors is an integer number (506166061).

Almost surely, 2^1012332121 is an apocalyptic number.

It is an amenable number.

1012332121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012332121 is an equidigital number, since it uses as much as digits as its factorization.

1012332121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1012332121 is about 31817.1670800529. The cubic root of 1012332121 is about 1004.0939239153.

Adding to 1012332121 its reverse (1212332101), we get a palindrome (2224664222).

The spelling of 1012332121 in words is "one billion, twelve million, three hundred thirty-two thousand, one hundred twenty-one".