20011201121012 has 12 divisors (see below), whose sum is σ = 35056348665156. Its totient is φ = 9995101502400.

The previous prime is 20011201120993. The next prime is 20011201121029. The reversal of 20011201121012 is 21012110211002.

It can be written as a sum of positive squares in 2 ways, for example, as 8854171555216 + 11157029565796 = 2975596^2 + 3340214^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2624760239 + ... + 2624767862.

It is an arithmetic number, because the mean of its divisors is an integer number (2921362388763).

Almost surely, 2^{20011201121012} is an apocalyptic number.

It is an amenable number.

20011201121012 is a deficient number, since it is larger than the sum of its proper divisors (15045147544144).

20011201121012 is a wasteful number, since it uses less digits than its factorization.

20011201121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5249529058 (or 5249529056 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20011201121012 its reverse (21012110211002), we get a palindrome (41023311332014).

The spelling of 20011201121012 in words is "twenty trillion, eleven billion, two hundred one million, one hundred twenty-one thousand, twelve".