102120011012 has 6 divisors (see below), whose sum is σ = 178710019278. Its totient is φ = 51060005504.

The previous prime is 102120011003. The next prime is 102120011029. The reversal of 102120011012 is 210110021201.

It can be written as a sum of positive squares in only one way, i.e., 99140597956 + 2979413056 = 314866^2 + 54584^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102120010984 and 102120011002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12765001373 + ... + 12765001380.

It is an arithmetic number, because the mean of its divisors is an integer number (29785003213).

Almost surely, 2^102120011012 is an apocalyptic number.

It is an amenable number.

102120011012 is a deficient number, since it is larger than the sum of its proper divisors (76590008266).

102120011012 is a wasteful number, since it uses less digits than its factorization.

102120011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25530002757 (or 25530002755 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102120011012 its reverse (210110021201), we get a palindrome (312230032213).

The spelling of 102120011012 in words is "one hundred two billion, one hundred twenty million, eleven thousand, twelve".