1022140321 has 4 divisors (see below), whose sum is σ = 1075937200. Its totient is φ = 968343444.

The previous prime is 1022140303. The next prime is 1022140369. The reversal of 1022140321 is 1230412201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1230412201 = 47 ⋅26178983.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022140321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022140295 and 1022140304.

It is not an unprimeable number, because it can be changed into a prime (1022140391) 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, 26898411 + ... + 26898448.

It is an arithmetic number, because the mean of its divisors is an integer number (268984300).

Almost surely, 2^1022140321 is an apocalyptic number.

It is an amenable number.

1022140321 is a deficient number, since it is larger than the sum of its proper divisors (53796879).

1022140321 is an equidigital number, since it uses as much as digits as its factorization.

1022140321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53796878.

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

The square root of 1022140321 is about 31970.9293108599. The cubic root of 1022140321 is about 1007.3263012313.

Adding to 1022140321 its reverse (1230412201), we get a palindrome (2252552522).

The spelling of 1022140321 in words is "one billion, twenty-two million, one hundred forty thousand, three hundred twenty-one".