1022021113 has 16 divisors (see below), whose sum is σ = 1120863744. Its totient is φ = 927694080.

The previous prime is 1022021111. The next prime is 1022021159. The reversal of 1022021113 is 3111202201.

It is not a de Polignac number, because 1022021113 - 2¹ = 1022021111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022021093 and 1022021102.

It is not an unprimeable number, because it can be changed into a prime (1022021111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158631 + ... + 164947.

It is an arithmetic number, because the mean of its divisors is an integer number (70053984).

Almost surely, 2^1022021113 is an apocalyptic number.

It is an amenable number.

1022021113 is a deficient number, since it is larger than the sum of its proper divisors (98842631).

1022021113 is a wasteful number, since it uses less digits than its factorization.

1022021113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6672.

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

The square root of 1022021113 is about 31969.0649378426. The cubic root of 1022021113 is about 1007.2871396081.

Adding to 1022021113 its reverse (3111202201), we get a palindrome (4133223314).

The spelling of 1022021113 in words is "one billion, twenty-two million, twenty-one thousand, one hundred thirteen".