100020122205 has 32 divisors (see below), whose sum is σ = 165258067968. Its totient is φ = 51603432000.

The previous prime is 100020122203. The next prime is 100020122219. The reversal of 100020122205 is 502221020001.

It is not a de Polignac number, because 100020122205 - 2¹ = 100020122203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100020122203) 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, 1209430 + ... + 1289480.

It is an arithmetic number, because the mean of its divisors is an integer number (5164314624).

Almost surely, 2^100020122205 is an apocalyptic number.

100020122205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100020122205 is a deficient number, since it is larger than the sum of its proper divisors (65237945763).

100020122205 is a wasteful number, since it uses less digits than its factorization.

100020122205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82777.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 100020122205 its reverse (502221020001), we get a palindrome (602241142206).

The spelling of 100020122205 in words is "one hundred billion, twenty million, one hundred twenty-two thousand, two hundred five".