20010002022 has 20 divisors (see below), whose sum is σ = 44837227116. Its totient is φ = 6670000620.

The previous prime is 20010002009. The next prime is 20010002027. The reversal of 20010002022 is 22020001002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20010001995 and 20010002013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010002027) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 61759104 + ... + 61759427.

Almost surely, 2^20010002022 is an apocalyptic number.

20010002022 is an abundant number, since it is smaller than the sum of its proper divisors (24827225094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20010002022 is a wasteful number, since it uses less digits than its factorization.

20010002022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123518545 (or 123518536 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20010002022 its reverse (22020001002), we get a palindrome (42030003024).

The spelling of 20010002022 in words is "twenty billion, ten million, two thousand, twenty-two".