1021022113 has 2 divisors, whose sum is σ = 1021022114. Its totient is φ = 1021022112.

The previous prime is 1021022083. The next prime is 1021022117. The reversal of 1021022113 is 3112201201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1020930304 + 91809 = 31952^2 + 303^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021022113 - 2¹³ = 1021013921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021022093 and 1021022102.

It is not a weakly prime, because it can be changed into another prime (1021022117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510511056 + 510511057.

It is an arithmetic number, because the mean of its divisors is an integer number (510511057).

Almost surely, 2^1021022113 is an apocalyptic number.

It is an amenable number.

1021022113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021022113 is an equidigital number, since it uses as much as digits as its factorization.

1021022113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1021022113 is about 31953.4366383336. The cubic root of 1021022113 is about 1006.9588333109.

Adding to 1021022113 its reverse (3112201201), we get a palindrome (4133223314).

It can be divided in two parts, 10210 and 22113, that added together give a palindrome (32323).

The spelling of 1021022113 in words is "one billion, twenty-one million, twenty-two thousand, one hundred thirteen".