20201011021012 has 6 divisors (see below), whose sum is σ = 35351769286778. Its totient is φ = 10100505510504.

The previous prime is 20201011021001. The next prime is 20201011021019. The reversal of 20201011021012 is 21012011010202.

It can be written as a sum of positive squares in only one way, i.e., 13132825157776 + 7068185863236 = 3623924^2 + 2658606^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20201011020983 and 20201011021001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201011021019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525126377623 + ... + 2525126377630.

Almost surely, 2^{20201011021012} is an apocalyptic number.

It is an amenable number.

20201011021012 is a deficient number, since it is larger than the sum of its proper divisors (15150758265766).

20201011021012 is a wasteful number, since it uses less digits than its factorization.

20201011021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050252755257 (or 5050252755255 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20201011021012 its reverse (21012011010202), we get a palindrome (41213022031214).

The spelling of 20201011021012 in words is "twenty trillion, two hundred one billion, eleven million, twenty-one thousand, twelve".