20001102020019 has 64 divisors (see below), whose sum is σ = 31563907200000. Its totient is φ = 12481371378432.

The previous prime is 20001102019933. The next prime is 20001102020047. The reversal of 20001102020019 is 91002020110002.

It is not a de Polignac number, because 20001102020019 - 2⁸ = 20001102019763 is a prime.

It is a super-2 number, since 2×20001102020019² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20001102019983 and 20001102020010.

It is not an unprimeable number, because it can be changed into a prime (20001102022019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63717577 + ... + 64030709.

It is an arithmetic number, because the mean of its divisors is an integer number (493186050000).

Almost surely, 2^{20001102020019} is an apocalyptic number.

20001102020019 is a deficient number, since it is larger than the sum of its proper divisors (11562805179981).

20001102020019 is a wasteful number, since it uses less digits than its factorization.

20001102020019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314649 (or 314643 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 20001102020019 in words is "twenty trillion, one billion, one hundred two million, twenty thousand, nineteen".