20021122203 has 8 divisors (see below), whose sum is σ = 26710169616. Its totient is φ = 13339744800.

The previous prime is 20021122189. The next prime is 20021122217. The reversal of 20021122203 is 30222112002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20021122189) and next prime (20021122217).

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

It is not a de Polignac number, because 20021122203 - 2¹⁸ = 20020860059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20021122223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1911408 + ... + 1921853.

It is an arithmetic number, because the mean of its divisors is an integer number (3338771202).

Almost surely, 2^20021122203 is an apocalyptic number.

20021122203 is a deficient number, since it is larger than the sum of its proper divisors (6689047413).

20021122203 is a wasteful number, since it uses less digits than its factorization.

20021122203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835005.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20021122203 its reverse (30222112002), we get a palindrome (50243234205).

The spelling of 20021122203 in words is "twenty billion, twenty-one million, one hundred twenty-two thousand, two hundred three".