1002201100101 has 32 divisors (see below), whose sum is σ = 1490682259200. Its totient is φ = 665463003840.

The previous prime is 1002201100097. The next prime is 1002201100127. The reversal of 1002201100101 is 1010011022001.

It is a happy number.

It is not a de Polignac number, because 1002201100101 - 2² = 1002201100097 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 (1002201100301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20250855 + ... + 20300283.

It is an arithmetic number, because the mean of its divisors is an integer number (46583820600).

Almost surely, 2^{1002201100101} is an apocalyptic number.

It is an amenable number.

1002201100101 is a deficient number, since it is larger than the sum of its proper divisors (488481159099).

1002201100101 is a wasteful number, since it uses less digits than its factorization.

1002201100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52426 (or 52420 counting only the distinct ones).

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

Adding to 1002201100101 its reverse (1010011022001), we get a palindrome (2012212122102).

The spelling of 1002201100101 in words is "one trillion, two billion, two hundred one million, one hundred thousand, one hundred one".