12101020021011 has 8 divisors (see below), whose sum is σ = 16227957485520. Its totient is φ = 8020714618592.

The previous prime is 12101020021007. The next prime is 12101020021061. The reversal of 12101020021011 is 11012002010121.

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 12101020021011 - 2² = 12101020021007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12101020021061) 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, 11658014916 + ... + 11658015953.

It is an arithmetic number, because the mean of its divisors is an integer number (2028494685690).

Almost surely, 2^{12101020021011} is an apocalyptic number.

12101020021011 is a deficient number, since it is larger than the sum of its proper divisors (4126937464509).

12101020021011 is a wasteful number, since it uses less digits than its factorization.

12101020021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23316031045.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12101020021011 its reverse (11012002010121), we get a palindrome (23113022031132).

The spelling of 12101020021011 in words is "twelve trillion, one hundred one billion, twenty million, twenty-one thousand, eleven".