2351021022 has 48 divisors (see below), whose sum is σ = 5908486272. Its totient is φ = 661692240.

The previous prime is 2351021021. The next prime is 2351021047. The reversal of 2351021022 is 2201201532.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2351020986 and 2351021004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2351021021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130804 + ... + 147687.

It is an arithmetic number, because the mean of its divisors is an integer number (123093464).

Almost surely, 2^2351021022 is an apocalyptic number.

2351021022 is an abundant number, since it is smaller than the sum of its proper divisors (3557465250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2351021022 is a wasteful number, since it uses less digits than its factorization.

2351021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278573 (or 278570 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2351021022 is about 48487.3284683741. The cubic root of 2351021022 is about 1329.6954136968.

Adding to 2351021022 its reverse (2201201532), we get a palindrome (4552222554).

The spelling of 2351021022 in words is "two billion, three hundred fifty-one million, twenty-one thousand, twenty-two".