100002021201 has 16 divisors (see below), whose sum is σ = 148164851520. Its totient is φ = 66661845120.

The previous prime is 100002021137. The next prime is 100002021233. The reversal of 100002021201 is 102120200001.

It is not a de Polignac number, because 100002021201 - 2⁶ = 100002021137 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (100002021601) 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, 135841 + ... + 467393.

It is an arithmetic number, because the mean of its divisors is an integer number (9260303220).

Almost surely, 2^100002021201 is an apocalyptic number.

It is an amenable number.

100002021201 is a deficient number, since it is larger than the sum of its proper divisors (48162830319).

100002021201 is a wasteful number, since it uses less digits than its factorization.

100002021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342733 (or 342727 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 100002021201 its reverse (102120200001), we get a palindrome (202122221202).

The spelling of 100002021201 in words is "one hundred billion, two million, twenty-one thousand, two hundred one".