20010001022 has 16 divisors (see below), whose sum is σ = 33067836144. Its totient is φ = 9005400000.

The previous prime is 20010001021. The next prime is 20010001027. The reversal of 20010001022 is 22010001002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010001021) 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, 4500479 + ... + 4504922.

It is an arithmetic number, because the mean of its divisors is an integer number (2066739759).

Almost surely, 2^20010001022 is an apocalyptic number.

20010001022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20010001022 is a deficient number, since it is larger than the sum of its proper divisors (13057835122).

20010001022 is a wasteful number, since it uses less digits than its factorization.

20010001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9005515.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20010001022 its reverse (22010001002), we get a palindrome (42020002024).

The spelling of 20010001022 in words is "twenty billion, ten million, one thousand, twenty-two".