21000102131219 has 8 divisors (see below), whose sum is σ = 21062506080000. Its totient is φ = 20937771129600.

The previous prime is 21000102131213. The next prime is 21000102131249. The reversal of 21000102131219 is 91213120100012.

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 21000102131219 - 2²⁰ = 21000101082643 is a prime.

It is a super-2 number, since 2×21000102131219² (a number of 27 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 = 21000102131194 and 21000102131203.

It is not an unprimeable number, because it can be changed into a prime (21000102131213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17660147 + ... + 18811724.

It is an arithmetic number, because the mean of its divisors is an integer number (2632813260000).

Almost surely, 2^{21000102131219} is an apocalyptic number.

21000102131219 is a deficient number, since it is larger than the sum of its proper divisors (62403948781).

21000102131219 is a wasteful number, since it uses less digits than its factorization.

21000102131219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36473581.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 21000102131219 in words is "twenty-one trillion, one hundred two million, one hundred thirty-one thousand, two hundred nineteen".