2021112101219 has 4 divisors (see below), whose sum is σ = 2051277953544. Its totient is φ = 1990946248896.

The previous prime is 2021112101189. The next prime is 2021112101243. The reversal of 2021112101219 is 9121012111202.

It is a happy number.

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 2021112101219 - 2⁸ = 2021112100963 is a prime.

It is a super-2 number, since 2×2021112101219² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021112101194 and 2021112101203.

It is not an unprimeable number, because it can be changed into a prime (2021112101279) 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 3 ways as a sum of consecutive naturals, for example, 15082926062 + ... + 15082926195.

It is an arithmetic number, because the mean of its divisors is an integer number (512819488386).

Almost surely, 2^{2021112101219} is an apocalyptic number.

2021112101219 is a deficient number, since it is larger than the sum of its proper divisors (30165852325).

2021112101219 is an equidigital number, since it uses as much as digits as its factorization.

2021112101219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30165852324.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 2021112101219 in words is "two trillion, twenty-one billion, one hundred twelve million, one hundred one thousand, two hundred nineteen".