102021212112019 has 2 divisors, whose sum is σ = 102021212112020. Its totient is φ = 102021212112018.

The previous prime is 102021212111989. The next prime is 102021212112031. The reversal of 102021212112019 is 910211212120201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102021212112019 is a prime.

It is a super-2 number, since 2×102021212112019² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102021212111984 and 102021212112002.

It is not a weakly prime, because it can be changed into another prime (102021212112059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010606056009 + 51010606056010.

It is an arithmetic number, because the mean of its divisors is an integer number (51010606056010).

Almost surely, 2^{102021212112019} is an apocalyptic number.

102021212112019 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021212112019 is an equidigital number, since it uses as much as digits as its factorization.

102021212112019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 102021212112019 in words is "one hundred two trillion, twenty-one billion, two hundred twelve million, one hundred twelve thousand, nineteen".