102012110221121 has 8 divisors (see below), whose sum is σ = 103328726952360. Its totient is φ = 100700900540928.

The previous prime is 102012110221111. The next prime is 102012110221181. The reversal of 102012110221121 is 121122011210201.

It can be written as a sum of positive squares in 4 ways, for example, as 16005312440896 + 86006797780225 = 4000664^2 + 9273985^2 .

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

It is not a de Polignac number, because 102012110221121 - 2¹⁸ = 102012109958977 is a prime.

It is a super-2 number, since 2×102012110221121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102012110221121.

It is not an unprimeable number, because it can be changed into a prime (102012110221111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1351724786 + ... + 1351800251.

It is an arithmetic number, because the mean of its divisors is an integer number (12916090869045).

Almost surely, 2^{102012110221121} is an apocalyptic number.

It is an amenable number.

102012110221121 is a deficient number, since it is larger than the sum of its proper divisors (1316616731239).

102012110221121 is an equidigital number, since it uses as much as digits as its factorization.

102012110221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703525523.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102012110221121 its reverse (121122011210201), we get a palindrome (223134121431322).

The spelling of 102012110221121 in words is "one hundred two trillion, twelve billion, one hundred ten million, two hundred twenty-one thousand, one hundred twenty-one".