20101212202011 has 8 divisors (see below), whose sum is σ = 26801708490240. Its totient is φ = 13400762024232.

The previous prime is 20101212202003. The next prime is 20101212202021. The reversal of 20101212202011 is 11020221210102.

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

It is not a de Polignac number, because 20101212202011 - 2³ = 20101212202003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20101212202021) 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, 10497271 + ... + 12263568.

It is an arithmetic number, because the mean of its divisors is an integer number (3350213561280).

Almost surely, 2^{20101212202011} is an apocalyptic number.

20101212202011 is a deficient number, since it is larger than the sum of its proper divisors (6700496288229).

20101212202011 is a wasteful number, since it uses less digits than its factorization.

20101212202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23055225.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20101212202011 its reverse (11020221210102), we get a palindrome (31121433412113).

The spelling of 20101212202011 in words is "twenty trillion, one hundred one billion, two hundred twelve million, two hundred two thousand, eleven".