20101201220011 has 8 divisors (see below), whose sum is σ = 20384416714464. Its totient is φ = 19817988503040.

The previous prime is 20101201219973. The next prime is 20101201220021. The reversal of 20101201220011 is 11002210210102.

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 20101201220011 - 2²¹ = 20101199122859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20101201219973 and 20101201220000.

It is not an unprimeable number, because it can be changed into a prime (20101201220021) 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, 17056041 + ... + 18196453.

It is an arithmetic number, because the mean of its divisors is an integer number (2548052089308).

Almost surely, 2^{20101201220011} is an apocalyptic number.

20101201220011 is a deficient number, since it is larger than the sum of its proper divisors (283215494453).

20101201220011 is a wasteful number, since it uses less digits than its factorization.

20101201220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388741.

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

Adding to 20101201220011 its reverse (11002210210102), we get a palindrome (31103411430113).

The spelling of 20101201220011 in words is "twenty trillion, one hundred one billion, two hundred one million, two hundred twenty thousand, eleven".