102122220122 has 32 divisors (see below), whose sum is σ = 165588424848. Its totient is φ = 46955943936.

The previous prime is 102122220103. The next prime is 102122220163. The reversal of 102122220122 is 221022221201.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 360582121 + 101761638001 = 18989^2 + 319001^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102122220122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11128328 + ... + 11137500.

Almost surely, 2^102122220122 is an apocalyptic number.

102122220122 is a deficient number, since it is larger than the sum of its proper divisors (63466204726).

102122220122 is a wasteful number, since it uses less digits than its factorization.

102122220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10754.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102122220122 its reverse (221022221201), we get a palindrome (323144441323).

The spelling of 102122220122 in words is "one hundred two billion, one hundred twenty-two million, two hundred twenty thousand, one hundred twenty-two".