100021200001101 has 24 divisors (see below), whose sum is σ = 144645617465856. Its totient is φ = 66602087613600.

The previous prime is 100021200001097. The next prime is 100021200001109. The reversal of 100021200001101 is 101100002120001.

It is a happy number.

It is not a de Polignac number, because 100021200001101 - 2² = 100021200001097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021200001109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451548091 + ... + 451769543.

It is an arithmetic number, because the mean of its divisors is an integer number (6026900727744).

Almost surely, 2^{100021200001101} is an apocalyptic number.

It is an amenable number.

100021200001101 is a deficient number, since it is larger than the sum of its proper divisors (44624417464755).

100021200001101 is a wasteful number, since it uses less digits than its factorization.

100021200001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280473 (or 280470 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100021200001101 its reverse (101100002120001), we get a palindrome (201121202121102).

The spelling of 100021200001101 in words is "one hundred trillion, twenty-one billion, two hundred million, one thousand, one hundred one".