2021012202203 has 4 divisors (see below), whose sum is σ = 2023301005128. Its totient is φ = 2018723399280.

The previous prime is 2021012202191. The next prime is 2021012202211. The reversal of 2021012202203 is 3022022101202.

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 2021012202203 - 2³⁸ = 1746134295259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021012102203) 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, 1144400138 + ... + 1144401903.

It is an arithmetic number, because the mean of its divisors is an integer number (505825251282).

Almost surely, 2^{2021012202203} is an apocalyptic number.

2021012202203 is a deficient number, since it is larger than the sum of its proper divisors (2288802925).

2021012202203 is an equidigital number, since it uses as much as digits as its factorization.

2021012202203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288802924.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 2021012202203 its reverse (3022022101202), we get a palindrome (5043034303405).

The spelling of 2021012202203 in words is "two trillion, twenty-one billion, twelve million, two hundred two thousand, two hundred three".