102221012122 has 8 divisors (see below), whose sum is σ = 155054344500. Its totient is φ = 50536230624.

The previous prime is 102221012081. The next prime is 102221012143. The reversal of 102221012122 is 221210122201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 93269770801 + 8951241321 = 305401^2 + 94611^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 102221012096 and 102221012105.

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, 287137497 + ... + 287137852.

Almost surely, 2^102221012122 is an apocalyptic number.

102221012122 is a deficient number, since it is larger than the sum of its proper divisors (52833332378).

102221012122 is an equidigital number, since it uses as much as digits as its factorization.

102221012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574275440.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102221012122 its reverse (221210122201), we get a palindrome (323431134323).

The spelling of 102221012122 in words is "one hundred two billion, two hundred twenty-one million, twelve thousand, one hundred twenty-two".