102111201122122 has 8 divisors (see below), whose sum is σ = 154372839492096. Its totient is φ = 50653587958092.

The previous prime is 102111201122057. The next prime is 102111201122153. The reversal of 102111201122122 is 221221102111201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 102111201122122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201006301168 + ... + 201006301675.

It is an arithmetic number, because the mean of its divisors is an integer number (19296604936512).

Almost surely, 2^{102111201122122} is an apocalyptic number.

102111201122122 is a deficient number, since it is larger than the sum of its proper divisors (52261638369974).

102111201122122 is a wasteful number, since it uses less digits than its factorization.

102111201122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402012602972.

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

Adding to 102111201122122 its reverse (221221102111201), we get a palindrome (323332303233323).

The spelling of 102111201122122 in words is "one hundred two trillion, one hundred eleven billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty-two".