100021222201 has 4 divisors (see below), whose sum is σ = 100043840512. Its totient is φ = 99998603892.

The previous prime is 100021222177. The next prime is 100021222211. The reversal of 100021222201 is 102222120001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100021222201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100021222211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11302521 + ... + 11311366.

It is an arithmetic number, because the mean of its divisors is an integer number (25010960128).

Almost surely, 2^100021222201 is an apocalyptic number.

It is an amenable number.

100021222201 is a deficient number, since it is larger than the sum of its proper divisors (22618311).

100021222201 is an equidigital number, since it uses as much as digits as its factorization.

100021222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22618310.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100021222201 its reverse (102222120001), we get a palindrome (202243342202).

The spelling of 100021222201 in words is "one hundred billion, twenty-one million, two hundred twenty-two thousand, two hundred one".