102210020947 has 2 divisors, whose sum is σ = 102210020948. Its totient is φ = 102210020946.

The previous prime is 102210020921. The next prime is 102210021013. The reversal of 102210020947 is 749020012201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102210020947 - 2⁷ = 102210020819 is a prime.

It is a super-3 number, since 3×102210020947³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (102210020147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51105010473 + 51105010474.

It is an arithmetic number, because the mean of its divisors is an integer number (51105010474).

Almost surely, 2^102210020947 is an apocalyptic number.

102210020947 is a deficient number, since it is larger than the sum of its proper divisors (1).

102210020947 is an equidigital number, since it uses as much as digits as its factorization.

102210020947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 102210020947 in words is "one hundred two billion, two hundred ten million, twenty thousand, nine hundred forty-seven".