102120111212122 has 8 divisors (see below), whose sum is σ = 153573946168500. Its totient is φ = 50928795822624.

The previous prime is 102120111212117. The next prime is 102120111212149. The reversal of 102120111212122 is 221212111021201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 96406103832921 + 5714007379201 = 9818661^2 + 2390399^2 .

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

It is a super-2 number, since 2×102120111212122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102120111212122.

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, 65629890747 + ... + 65629892302.

Almost surely, 2^{102120111212122} is an apocalyptic number.

102120111212122 is a deficient number, since it is larger than the sum of its proper divisors (51453834956378).

102120111212122 is a wasteful number, since it uses less digits than its factorization.

102120111212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131259783440.

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

Adding to 102120111212122 its reverse (221212111021201), we get a palindrome (323332222233323).

The spelling of 102120111212122 in words is "one hundred two trillion, one hundred twenty billion, one hundred eleven million, two hundred twelve thousand, one hundred twenty-two".