101100021102 has 16 divisors (see below), whose sum is σ = 224666713680. Its totient is φ = 33700007016.

The previous prime is 101100021091. The next prime is 101100021107. The reversal of 101100021102 is 201120001101.

It is a happy number.

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 (101100021107) 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, 936111253 + ... + 936111360.

It is an arithmetic number, because the mean of its divisors is an integer number (14041669605).

Almost surely, 2^101100021102 is an apocalyptic number.

101100021102 is an abundant number, since it is smaller than the sum of its proper divisors (123566692578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101100021102 is a wasteful number, since it uses less digits than its factorization.

101100021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872222624 (or 1872222618 counting only the distinct ones).

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

Adding to 101100021102 its reverse (201120001101), we get a palindrome (302220022203).

The spelling of 101100021102 in words is "one hundred one billion, one hundred million, twenty-one thousand, one hundred two".