102121120201 has 4 divisors (see below), whose sum is σ = 102140889472. Its totient is φ = 102101350932.

The previous prime is 102121120187. The next prime is 102121120229. The reversal of 102121120201 is 102021121201.

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 a cyclic number.

It is not a de Polignac number, because 102121120201 - 2¹¹ = 102121118153 is a prime.

It is a super-2 number, since 2×102121120201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102121120501) 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 3 ways as a sum of consecutive naturals, for example, 9876885 + ... + 9887218.

It is an arithmetic number, because the mean of its divisors is an integer number (25535222368).

Almost surely, 2^102121120201 is an apocalyptic number.

It is an amenable number.

102121120201 is a deficient number, since it is larger than the sum of its proper divisors (19769271).

102121120201 is an equidigital number, since it uses as much as digits as its factorization.

102121120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19769270.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102121120201 its reverse (102021121201), we get a palindrome (204142241402).

The spelling of 102121120201 in words is "one hundred two billion, one hundred twenty-one million, one hundred twenty thousand, two hundred one".