221010000203 has 4 divisors (see below), whose sum is σ = 221011244328. Its totient is φ = 221008756080.

The previous prime is 221010000121. The next prime is 221010000209. The reversal of 221010000203 is 302000010122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 221010000203 - 2¹² = 221009996107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221010000209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300026 + ... + 729407.

It is an arithmetic number, because the mean of its divisors is an integer number (55252811082).

Almost surely, 2^221010000203 is an apocalyptic number.

221010000203 is a deficient number, since it is larger than the sum of its proper divisors (1244125).

221010000203 is a wasteful number, since it uses less digits than its factorization.

221010000203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244124.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 221010000203 its reverse (302000010122), we get a palindrome (523010010325).

The spelling of 221010000203 in words is "two hundred twenty-one billion, ten million, two hundred three", and thus it is an aban number.