102021002001019 has 32 divisors (see below), whose sum is σ = 108270741196800. Its totient is φ = 95994154321920.

The previous prime is 102021002000999. The next prime is 102021002001089. The reversal of 102021002001019 is 910100200120201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102021002001019 - 2⁵ = 102021002000987 is a prime.

It is a super-2 number, since 2×102021002001019² (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 = 102021002000987 and 102021002001005.

It is not an unprimeable number, because it can be changed into a prime (102021002001089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276402439 + ... + 276771295.

It is an arithmetic number, because the mean of its divisors is an integer number (3383460662400).

Almost surely, 2^{102021002001019} is an apocalyptic number.

102021002001019 is a deficient number, since it is larger than the sum of its proper divisors (6249739195781).

102021002001019 is a wasteful number, since it uses less digits than its factorization.

102021002001019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370603.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 102021002001019 in words is "one hundred two trillion, twenty-one billion, two million, one thousand, nineteen".