20121201012011 has 8 divisors (see below), whose sum is σ = 21950755153200. Its totient is φ = 18291705879040.

The previous prime is 20121201011981. The next prime is 20121201012037. The reversal of 20121201012011 is 11021010212102.

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

It is not a de Polignac number, because 20121201012011 - 2¹⁰ = 20121201010987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121201012041) 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, 14037566 + ... + 15404403.

It is an arithmetic number, because the mean of its divisors is an integer number (2743844394150).

Almost surely, 2^{20121201012011} is an apocalyptic number.

20121201012011 is a deficient number, since it is larger than the sum of its proper divisors (1829554141189).

20121201012011 is a wasteful number, since it uses less digits than its factorization.

20121201012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29504109.

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

Adding to 20121201012011 its reverse (11021010212102), we get a palindrome (31142211224113).

The spelling of 20121201012011 in words is "twenty trillion, one hundred twenty-one billion, two hundred one million, twelve thousand, eleven".