20001212201011 has 8 divisors (see below), whose sum is σ = 20646783709184. Its totient is φ = 19355663887560.

The previous prime is 20001212200987. The next prime is 20001212201081. The reversal of 20001212201011 is 11010221210002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20001212201011 - 2⁵ = 20001212200979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20001212200982 and 20001212201000.

It is not an unprimeable number, because it can be changed into a prime (20001212201081) 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, 4037721 + ... + 7503706.

It is an arithmetic number, because the mean of its divisors is an integer number (2580847963648).

Almost surely, 2^{20001212201011} is an apocalyptic number.

20001212201011 is a deficient number, since it is larger than the sum of its proper divisors (645571508173).

20001212201011 is a wasteful number, since it uses less digits than its factorization.

20001212201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11597361.

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

Adding to 20001212201011 its reverse (11010221210002), we get a palindrome (31011433411013).

The spelling of 20001212201011 in words is "twenty trillion, one billion, two hundred twelve million, two hundred one thousand, eleven".