102021212100201 has 4 divisors (see below), whose sum is σ = 136028282800272. Its totient is φ = 68014141400132.

The previous prime is 102021212100191. The next prime is 102021212100211. The reversal of 102021212100201 is 102001212120201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (102021212100191) and next prime (102021212100211).

It is a cyclic number.

It is not a de Polignac number, because 102021212100201 - 2⁵ = 102021212100169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102021212100211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17003535350031 + ... + 17003535350036.

It is an arithmetic number, because the mean of its divisors is an integer number (34007070700068).

Almost surely, 2^{102021212100201} is an apocalyptic number.

It is an amenable number.

102021212100201 is a deficient number, since it is larger than the sum of its proper divisors (34007070700071).

102021212100201 is an equidigital number, since it uses as much as digits as its factorization.

102021212100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34007070700070.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102021212100201 its reverse (102001212120201), we get a palindrome (204022424220402).

The spelling of 102021212100201 in words is "one hundred two trillion, twenty-one billion, two hundred twelve million, one hundred thousand, two hundred one".