20011422012 has 24 divisors (see below), whose sum is σ = 46702271616. Its totient is φ = 6669194928.

The previous prime is 20011421999. The next prime is 20011422017. The reversal of 20011422012 is 21022411002.

It is a junction number, because it is equal to n+sod(n) for n = 20011421982 and 20011422000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011422017) 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, 93598 + ... + 220869.

It is an arithmetic number, because the mean of its divisors is an integer number (1945927984).

Almost surely, 2^20011422012 is an apocalyptic number.

It is an amenable number.

20011422012 is an abundant number, since it is smaller than the sum of its proper divisors (26690849604).

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

20011422012 is a wasteful number, since it uses less digits than its factorization.

20011422012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319777 (or 319775 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20011422012 its reverse (21022411002), we get a palindrome (41033833014).

The spelling of 20011422012 in words is "twenty billion, eleven million, four hundred twenty-two thousand, twelve".