20010122203 has 8 divisors (see below), whose sum is σ = 20657657216. Its totient is φ = 19362715200.

The previous prime is 20010122189. The next prime is 20010122261. The reversal of 20010122203 is 30222101002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20010122203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010122303) 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 in 7 ways as a sum of consecutive naturals, for example, 363433 + ... + 414853.

It is an arithmetic number, because the mean of its divisors is an integer number (2582207152).

Almost surely, 2^20010122203 is an apocalyptic number.

20010122203 is a deficient number, since it is larger than the sum of its proper divisors (647535013).

20010122203 is a wasteful number, since it uses less digits than its factorization.

20010122203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64005.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20010122203 its reverse (30222101002), we get a palindrome (50232223205).

The spelling of 20010122203 in words is "twenty billion, ten million, one hundred twenty-two thousand, two hundred three".