211121212212019 has 32 divisors (see below), whose sum is σ = 232189605457920. Its totient is φ = 191070707956128.

The previous prime is 211121212211993. The next prime is 211121212212041. The reversal of 211121212212019 is 910212212121112.

It is a cyclic number.

It is not a de Polignac number, because 211121212212019 - 2¹³ = 211121212203827 is a prime.

It is a super-2 number, since 2×211121212212019² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211121212212049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1316604762 + ... + 1316765104.

It is an arithmetic number, because the mean of its divisors is an integer number (7255925170560).

Almost surely, 2^{211121212212019} is an apocalyptic number.

211121212212019 is a deficient number, since it is larger than the sum of its proper divisors (21068393245901).

211121212212019 is a wasteful number, since it uses less digits than its factorization.

211121212212019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164191.

The product of its (nonzero) digits is 576, while the sum is 28.

The spelling of 211121212212019 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred twelve million, two hundred twelve thousand, nineteen".