10203203212211 has 4 divisors (see below), whose sum is σ = 10207532108592. Its totient is φ = 10198874315832.

The previous prime is 10203203212177. The next prime is 10203203212217. The reversal of 10203203212211 is 11221230230201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10203203212211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10203203212217) 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, 2164444655 + ... + 2164449368.

It is an arithmetic number, because the mean of its divisors is an integer number (2551883027148).

Almost surely, 2^{10203203212211} is an apocalyptic number.

10203203212211 is a deficient number, since it is larger than the sum of its proper divisors (4328896381).

10203203212211 is an equidigital number, since it uses as much as digits as its factorization.

10203203212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328896380.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 10203203212211 its reverse (11221230230201), we get a palindrome (21424433442412).

The spelling of 10203203212211 in words is "ten trillion, two hundred three billion, two hundred three million, two hundred twelve thousand, two hundred eleven".