102120201121211 has 16 divisors (see below), whose sum is σ = 130020415224000. Its totient is φ = 78012249130368.

The previous prime is 102120201121201. The next prime is 102120201121249. The reversal of 102120201121211 is 112121102021201.

It is not a de Polignac number, because 102120201121211 - 2¹⁴ = 102120201104827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102120201121211.

It is not an unprimeable number, because it can be changed into a prime (102120201121201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19348273436 + ... + 19348278713.

It is an arithmetic number, because the mean of its divisors is an integer number (8126275951500).

Almost surely, 2^{102120201121211} is an apocalyptic number.

102120201121211 is a deficient number, since it is larger than the sum of its proper divisors (27900214102789).

102120201121211 is a wasteful number, since it uses less digits than its factorization.

102120201121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38696552198.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102120201121211 its reverse (112121102021201), we get a palindrome (214241303142412).

The spelling of 102120201121211 in words is "one hundred two trillion, one hundred twenty billion, two hundred one million, one hundred twenty-one thousand, two hundred eleven".