100020001022 has 4 divisors (see below), whose sum is σ = 150030001536. Its totient is φ = 50010000510.

The previous prime is 100020001021. The next prime is 100020001049. The reversal of 100020001022 is 220100020001.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100020001021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25005000254 + ... + 25005000257.

It is an arithmetic number, because the mean of its divisors is an integer number (37507500384).

Almost surely, 2^100020001022 is an apocalyptic number.

100020001022 is a deficient number, since it is larger than the sum of its proper divisors (50010000514).

100020001022 is an equidigital number, since it uses as much as digits as its factorization.

100020001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50010000513.

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

Adding to 100020001022 its reverse (220100020001), we get a palindrome (320120021023).

The spelling of 100020001022 in words is "one hundred billion, twenty million, one thousand, twenty-two".