1022232121 has 4 divisors (see below), whose sum is σ = 1023196644. Its totient is φ = 1021267600.

The previous prime is 1022232109. The next prime is 1022232143. The reversal of 1022232121 is 1212322201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 314672121 + 707560000 = 17739^2 + 26600^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022232121 - 2⁵ = 1022232089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022232095 and 1022232104.

It is not an unprimeable number, because it can be changed into a prime (1022232221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480670 + ... + 482791.

It is an arithmetic number, because the mean of its divisors is an integer number (255799161).

Almost surely, 2^1022232121 is an apocalyptic number.

It is an amenable number.

1022232121 is a deficient number, since it is larger than the sum of its proper divisors (964523).

1022232121 is an equidigital number, since it uses as much as digits as its factorization.

1022232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964522.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1022232121 is about 31972.3649578820. The cubic root of 1022232121 is about 1007.3564568385.

Adding to 1022232121 its reverse (1212322201), we get a palindrome (2234554322).

The spelling of 1022232121 in words is "one billion, twenty-two million, two hundred thirty-two thousand, one hundred twenty-one".