20001022311012 has 48 divisors (see below), whose sum is σ = 46753249959360. Its totient is φ = 6654982923648.

The previous prime is 20001022311001. The next prime is 20001022311107. The reversal of 20001022311012 is 21011322010002.

It is a junction number, because it is equal to n+sod(n) for n = 20001022310982 and 20001022311000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42940723 + ... + 43404005.

It is an arithmetic number, because the mean of its divisors is an integer number (974026040820).

Almost surely, 2^{20001022311012} is an apocalyptic number.

It is an amenable number.

20001022311012 is an abundant number, since it is smaller than the sum of its proper divisors (26752227648348).

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

20001022311012 is a wasteful number, since it uses less digits than its factorization.

20001022311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469772 (or 469770 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20001022311012 its reverse (21011322010002), we get a palindrome (41012344321014).

The spelling of 20001022311012 in words is "twenty trillion, one billion, twenty-two million, three hundred eleven thousand, twelve".