1000020101022 has 48 divisors (see below), whose sum is σ = 2217549664512. Its totient is φ = 325548960720.

The previous prime is 1000020101009. The next prime is 1000020101023. The reversal of 1000020101022 is 2201010200001.

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 = 1000020100995 and 1000020101013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000020101023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 870504 + ... + 1660667.

It is an arithmetic number, because the mean of its divisors is an integer number (46198951344).

Almost surely, 2^{1000020101022} is an apocalyptic number.

1000020101022 is an abundant number, since it is smaller than the sum of its proper divisors (1217529563490).

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

1000020101022 is a wasteful number, since it uses less digits than its factorization.

1000020101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531693 (or 2531690 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1000020101022 its reverse (2201010200001), we get a palindrome (3201030301023).

The spelling of 1000020101022 in words is "one trillion, twenty million, one hundred one thousand, twenty-two".