102221021121211 has 4 divisors (see below), whose sum is σ = 102956424151000. Its totient is φ = 101485618091424.

The previous prime is 102221021121209. The next prime is 102221021121217. The reversal of 102221021121211 is 112121120122201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102221021121211 - 2¹ = 102221021121209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102221021121217) 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, 367701514686 + ... + 367701514963.

It is an arithmetic number, because the mean of its divisors is an integer number (25739106037750).

Almost surely, 2^{102221021121211} is an apocalyptic number.

102221021121211 is a deficient number, since it is larger than the sum of its proper divisors (735403029789).

102221021121211 is an equidigital number, since it uses as much as digits as its factorization.

102221021121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735403029788.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102221021121211 its reverse (112121120122201), we get a palindrome (214342141243412).

The spelling of 102221021121211 in words is "one hundred two trillion, two hundred twenty-one billion, twenty-one million, one hundred twenty-one thousand, two hundred eleven".