102121201222201 has 16 divisors (see below), whose sum is σ = 117005599960704. Its totient is φ = 87310923957504.

The previous prime is 102121201222199. The next prime is 102121201222333. The reversal of 102121201222201 is 102222102121201.

It is a cyclic number.

It is not a de Polignac number, because 102121201222201 - 2¹ = 102121201222199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102121201220201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2741536 + ... + 14551921.

It is an arithmetic number, because the mean of its divisors is an integer number (7312849997544).

Almost surely, 2^{102121201222201} is an apocalyptic number.

It is an amenable number.

102121201222201 is a deficient number, since it is larger than the sum of its proper divisors (14884398738503).

102121201222201 is a wasteful number, since it uses less digits than its factorization.

102121201222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17295600.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102121201222201 its reverse (102222102121201), we get a palindrome (204343303343402).

The spelling of 102121201222201 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred one million, two hundred twenty-two thousand, two hundred one".