102021101201219 has 2 divisors, whose sum is σ = 102021101201220. Its totient is φ = 102021101201218.

The previous prime is 102021101201203. The next prime is 102021101201237. The reversal of 102021101201219 is 912102101120201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102021101201219 - 2⁴ = 102021101201203 is a prime.

It is a super-2 number, since 2×102021101201219² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102021101201194 and 102021101201203.

It is not a weakly prime, because it can be changed into another prime (102021101201269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010550600609 + 51010550600610.

It is an arithmetic number, because the mean of its divisors is an integer number (51010550600610).

Almost surely, 2^{102021101201219} is an apocalyptic number.

102021101201219 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021101201219 is an equidigital number, since it uses as much as digits as its factorization.

102021101201219 is an evil number, because the sum of its binary digits is even.

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

The spelling of 102021101201219 in words is "one hundred two trillion, twenty-one billion, one hundred one million, two hundred one thousand, two hundred nineteen".