20211000202 has 4 divisors (see below), whose sum is σ = 30316500306. Its totient is φ = 10105500100.

The previous prime is 20211000193. The next prime is 20211000211. The reversal of 20211000202 is 20200011202.

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

It is an interprime number because it is at equal distance from previous prime (20211000193) and next prime (20211000211).

It can be written as a sum of positive squares in only one way, i.e., 15386169681 + 4824830521 = 124041^2 + 69461^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5052750049 + ... + 5052750052.

Almost surely, 2^20211000202 is an apocalyptic number.

20211000202 is a deficient number, since it is larger than the sum of its proper divisors (10105500104).

20211000202 is a wasteful number, since it uses less digits than its factorization.

20211000202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10105500103.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20211000202 its reverse (20200011202), we get a palindrome (40411011404).

It can be divided in two parts, 20211000 and 202, that added together give a palindrome (20211202).

The spelling of 20211000202 in words is "twenty billion, two hundred eleven million, two hundred two", and thus it is an aban number.