19101002020101 has 16 divisors (see below), whose sum is σ = 28298065504320. Its totient is φ = 12733873216560.

The previous prime is 19101002020039. The next prime is 19101002020127. The reversal of 19101002020101 is 10102020010191.

It is a happy number.

It is not a de Polignac number, because 19101002020101 - 2¹⁹ = 19101001495813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19101002020171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786870 + ... + 6230663.

It is an arithmetic number, because the mean of its divisors is an integer number (1768629094020).

Almost surely, 2^{19101002020101} is an apocalyptic number.

It is an amenable number.

19101002020101 is a deficient number, since it is larger than the sum of its proper divisors (9197063484219).

19101002020101 is a wasteful number, since it uses less digits than its factorization.

19101002020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7118353 (or 7118347 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 19101002020101 its reverse (10102020010191), we get a palindrome (29203022030292).

The spelling of 19101002020101 in words is "nineteen trillion, one hundred one billion, two million, twenty thousand, one hundred one".