1022020993 has 8 divisors (see below), whose sum is σ = 1199592512. Its totient is φ = 852341616.

The previous prime is 1022020957. The next prime is 1022020999. The reversal of 1022020993 is 3990202201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1022020993 - 2¹³ = 1022012801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022020999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1972755 + ... + 1973272.

It is an arithmetic number, because the mean of its divisors is an integer number (149949064).

Almost surely, 2^1022020993 is an apocalyptic number.

It is an amenable number.

1022020993 is a deficient number, since it is larger than the sum of its proper divisors (177571519).

1022020993 is an equidigital number, since it uses as much as digits as its factorization.

1022020993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946071.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1022020993 is about 31969.0630610282. The cubic root of 1022020993 is about 1007.2871001848.

It can be divided in two parts, 10220 and 20993, that added together give a palindrome (31213).

The spelling of 1022020993 in words is "one billion, twenty-two million, twenty thousand, nine hundred ninety-three".