202012102111019 has 8 divisors (see below), whose sum is σ = 205085339117568. Its totient is φ = 198940574840040.

The previous prime is 202012102110991. The next prime is 202012102111033. The reversal of 202012102111019 is 910111201210202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202012102111019 - 2⁴⁰ = 200912590483243 is a prime.

It is a super-2 number, since 2×202012102111019² (a number of 29 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 = 202012102110985 and 202012102111003.

It is not an unprimeable number, because it can be changed into a prime (202012102111049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427195787 + ... + 427668404.

It is an arithmetic number, because the mean of its divisors is an integer number (25635667389696).

Almost surely, 2^{202012102111019} is an apocalyptic number.

202012102111019 is a deficient number, since it is larger than the sum of its proper divisors (3073237006549).

202012102111019 is an equidigital number, since it uses as much as digits as its factorization.

202012102111019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854867785.

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

The spelling of 202012102111019 in words is "two hundred two trillion, twelve billion, one hundred two million, one hundred eleven thousand, nineteen".