10122012122221 has 8 divisors (see below), whose sum is σ = 10158418315584. Its totient is φ = 10085610432000.

The previous prime is 10122012122191. The next prime is 10122012122251. The reversal of 10122012122221 is 12222121022101.

It is an interprime number because it is at equal distance from previous prime (10122012122191) and next prime (10122012122251).

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

It is a cyclic number.

It is not a de Polignac number, because 10122012122221 - 2¹³ = 10122012114029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122012122251) 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, 3410640 + ... + 5645926.

It is an arithmetic number, because the mean of its divisors is an integer number (1269802289448).

Almost surely, 2^{10122012122221} is an apocalyptic number.

It is an amenable number.

10122012122221 is a deficient number, since it is larger than the sum of its proper divisors (36406193363).

10122012122221 is a wasteful number, since it uses less digits than its factorization.

10122012122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251571.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 10122012122221 its reverse (12222121022101), we get a palindrome (22344133144322).

The spelling of 10122012122221 in words is "ten trillion, one hundred twenty-two billion, twelve million, one hundred twenty-two thousand, two hundred twenty-one".