102002012221111 has 4 divisors (see below), whose sum is σ = 102005317673800. Its totient is φ = 101998706768424.

The previous prime is 102002012221091. The next prime is 102002012221117. The reversal of 102002012221111 is 111122210200201.

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 102002012221111 - 2⁵ = 102002012221079 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 (102002012221117) 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, 1652680056 + ... + 1652741773.

It is an arithmetic number, because the mean of its divisors is an integer number (25501329418450).

Almost surely, 2^{102002012221111} is an apocalyptic number.

102002012221111 is a deficient number, since it is larger than the sum of its proper divisors (3305452689).

102002012221111 is an equidigital number, since it uses as much as digits as its factorization.

102002012221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305452688.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102002012221111 its reverse (111122210200201), we get a palindrome (213124222421312).

The spelling of 102002012221111 in words is "one hundred two trillion, two billion, twelve million, two hundred twenty-one thousand, one hundred eleven".