20010021201101 has 16 divisors (see below), whose sum is σ = 22230403872768. Its totient is φ = 17914611052800.

The previous prime is 20010021201073. The next prime is 20010021201103. The reversal of 20010021201101 is 10110212001002.

It is a cyclic number.

It is not a de Polignac number, because 20010021201101 - 2²⁶ = 20009954092237 is a prime.

It is a super-2 number, since 2×20010021201101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010021201103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141300845 + ... + 141442386.

It is an arithmetic number, because the mean of its divisors is an integer number (1389400242048).

Almost surely, 2^{20010021201101} is an apocalyptic number.

It is an amenable number.

20010021201101 is a deficient number, since it is larger than the sum of its proper divisors (2220382671667).

20010021201101 is a wasteful number, since it uses less digits than its factorization.

20010021201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282743452.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20010021201101 its reverse (10110212001002), we get a palindrome (30120233202103).

The spelling of 20010021201101 in words is "twenty trillion, ten billion, twenty-one million, two hundred one thousand, one hundred one".