2021011212203 has 2 divisors, whose sum is σ = 2021011212204. Its totient is φ = 2021011212202.

The previous prime is 2021011212197. The next prime is 2021011212223. The reversal of 2021011212203 is 3022121101202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021011212203 - 2¹⁸ = 2021010950059 is a prime.

It is a super-2 number, since 2×2021011212203² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2021011212223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010505606101 + 1010505606102.

It is an arithmetic number, because the mean of its divisors is an integer number (1010505606102).

Almost surely, 2^{2021011212203} is an apocalyptic number.

2021011212203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021011212203 is an equidigital number, since it uses as much as digits as its factorization.

2021011212203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2021011212203 its reverse (3022121101202), we get a palindrome (5043132313405).

The spelling of 2021011212203 in words is "two trillion, twenty-one billion, eleven million, two hundred twelve thousand, two hundred three".