212120022101019 has 4 divisors (see below), whose sum is σ = 282826696134696. Its totient is φ = 141413348067344.

The previous prime is 212120022101017. The next prime is 212120022101081. The reversal of 212120022101019 is 910101220021212.

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 212120022101019 - 2¹ = 212120022101017 is a prime.

It is a super-2 number, since 2×212120022101019² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212120022101019.

It is not an unprimeable number, because it can be changed into a prime (212120022101017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35353337016834 + ... + 35353337016839.

It is an arithmetic number, because the mean of its divisors is an integer number (70706674033674).

Almost surely, 2^{212120022101019} is an apocalyptic number.

212120022101019 is a deficient number, since it is larger than the sum of its proper divisors (70706674033677).

212120022101019 is an equidigital number, since it uses as much as digits as its factorization.

212120022101019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70706674033676.

The product of its (nonzero) digits is 288, while the sum is 24.

The spelling of 212120022101019 in words is "two hundred twelve trillion, one hundred twenty billion, twenty-two million, one hundred one thousand, nineteen".