202100212019 has 2 divisors, whose sum is σ = 202100212020. Its totient is φ = 202100212018.

The previous prime is 202100212009. The next prime is 202100212051. The reversal of 202100212019 is 910212001202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202100212019 is a prime.

It is a super-2 number, since 2×202100212019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (202100212009) by changing a digit.

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, 101050106009 + 101050106010.

It is an arithmetic number, because the mean of its divisors is an integer number (101050106010).

Almost surely, 2^202100212019 is an apocalyptic number.

202100212019 is a deficient number, since it is larger than the sum of its proper divisors (1).

202100212019 is an equidigital number, since it uses as much as digits as its factorization.

202100212019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 202100212019 in words is "two hundred two billion, one hundred million, two hundred twelve thousand, nineteen".