2522031021 has 12 divisors (see below), whose sum is σ = 3643377660. Its totient is φ = 1681149120.

The previous prime is 2522031007. The next prime is 2522031059. The reversal of 2522031021 is 1201302252.

2522031021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2151660996 + 370370025 = 46386^2 + 19245^2 .

It is not a de Polignac number, because 2522031021 - 2⁶ = 2522030957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2522030985 and 2522031003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2522033021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113161 + ... + 133601.

It is an arithmetic number, because the mean of its divisors is an integer number (303614805).

Almost surely, 2^2522031021 is an apocalyptic number.

It is an amenable number.

2522031021 is a deficient number, since it is larger than the sum of its proper divisors (1121346639).

2522031021 is a wasteful number, since it uses less digits than its factorization.

2522031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34156 (or 34153 counting only the distinct ones).

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

The square root of 2522031021 is about 50219.8269710281. The cubic root of 2522031021 is about 1361.1839137474.

Adding to 2522031021 its reverse (1201302252), we get a palindrome (3723333273).

The spelling of 2522031021 in words is "two billion, five hundred twenty-two million, thirty-one thousand, twenty-one".