102021021201 has 16 divisors (see below), whose sum is σ = 150061567680. Its totient is φ = 61136190720.

The previous prime is 102021021143. The next prime is 102021021217. The reversal of 102021021201 is 102120120201.

It is not a de Polignac number, because 102021021201 - 2²³ = 102012632593 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102021021251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17365300 + ... + 17371173.

It is an arithmetic number, because the mean of its divisors is an integer number (9378847980).

Almost surely, 2^102021021201 is an apocalyptic number.

102021021201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102021021201 is a deficient number, since it is larger than the sum of its proper divisors (48040546479).

102021021201 is a wasteful number, since it uses less digits than its factorization.

102021021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34736576.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102021021201 its reverse (102120120201), we get a palindrome (204141141402).

The spelling of 102021021201 in words is "one hundred two billion, twenty-one million, twenty-one thousand, two hundred one".