20001000010122 has 48 divisors (see below), whose sum is σ = 43910381024640. Its totient is φ = 6578658043776.

The previous prime is 20001000010067. The next prime is 20001000010183. The reversal of 20001000010122 is 22101000010002.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1848303 + ... + 6589250.

It is an arithmetic number, because the mean of its divisors is an integer number (914799604680).

Almost surely, 2^{20001000010122} is an apocalyptic number.

20001000010122 is an abundant number, since it is smaller than the sum of its proper divisors (23909381014518).

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

20001000010122 is a wasteful number, since it uses less digits than its factorization.

20001000010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8439307 (or 8439304 counting only the distinct ones).

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

Adding to 20001000010122 its reverse (22101000010002), we get a palindrome (42102000020124).

The spelling of 20001000010122 in words is "twenty trillion, one billion, ten thousand, one hundred twenty-two".