102020001201 has 32 divisors (see below), whose sum is σ = 151668566400. Its totient is φ = 67776160320.

The previous prime is 102020001169. The next prime is 102020001227. The reversal of 102020001201 is 102100020201.

It is not a de Polignac number, because 102020001201 - 2⁵ = 102020001169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (102020071201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12655110 + ... + 12663168.

It is an arithmetic number, because the mean of its divisors is an integer number (4739642700).

Almost surely, 2^102020001201 is an apocalyptic number.

It is an amenable number.

102020001201 is a deficient number, since it is larger than the sum of its proper divisors (49648565199).

102020001201 is a wasteful number, since it uses less digits than its factorization.

102020001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9646 (or 9640 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 102020001201 its reverse (102100020201), we get a palindrome (204120021402).

The spelling of 102020001201 in words is "one hundred two billion, twenty million, one thousand, two hundred one".