102221220022111 has 4 divisors (see below), whose sum is σ = 102667600895800. Its totient is φ = 101774839148424.

The previous prime is 102221220022093. The next prime is 102221220022139. The reversal of 102221220022111 is 111220022122201.

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 102221220022111 - 2³¹ = 102219072538463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221220022711) 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, 223190436501 + ... + 223190436958.

It is an arithmetic number, because the mean of its divisors is an integer number (25666900223950).

Almost surely, 2^{102221220022111} is an apocalyptic number.

102221220022111 is a deficient number, since it is larger than the sum of its proper divisors (446380873689).

102221220022111 is an equidigital number, since it uses as much as digits as its factorization.

102221220022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446380873688.

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

Adding to 102221220022111 its reverse (111220022122201), we get a palindrome (213441242144312).

The spelling of 102221220022111 in words is "one hundred two trillion, two hundred twenty-one billion, two hundred twenty million, twenty-two thousand, one hundred eleven".