102021212112073 has 2 divisors, whose sum is σ = 102021212112074. Its totient is φ = 102021212112072.

The previous prime is 102021212112059. The next prime is 102021212112133. The reversal of 102021212112073 is 370211212120201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100014660537289 + 2006551574784 = 10000733^2 + 1416528^2 .

It is a cyclic number.

It is not a de Polignac number, because 102021212112073 - 2⁴¹ = 99822188856521 is a prime.

It is not a weakly prime, because it can be changed into another prime (102021212112973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010606056036 + 51010606056037.

It is an arithmetic number, because the mean of its divisors is an integer number (51010606056037).

Almost surely, 2^{102021212112073} is an apocalyptic number.

It is an amenable number.

102021212112073 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021212112073 is an equidigital number, since it uses as much as digits as its factorization.

102021212112073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 102021212112073 its reverse (370211212120201), we get a palindrome (472232424232274).

The spelling of 102021212112073 in words is "one hundred two trillion, twenty-one billion, two hundred twelve million, one hundred twelve thousand, seventy-three".