10012222002121 has 2 divisors, whose sum is σ = 10012222002122. Its totient is φ = 10012222002120.

The previous prime is 10012222002103. The next prime is 10012222002169. The reversal of 10012222002121 is 12120022221001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9587197542400 + 425024459721 = 3096320^2 + 651939^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012222002121 - 2¹¹ = 10012222000073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10012222002095 and 10012222002104.

It is not a weakly prime, because it can be changed into another prime (10012222006121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006111001060 + 5006111001061.

It is an arithmetic number, because the mean of its divisors is an integer number (5006111001061).

Almost surely, 2^{10012222002121} is an apocalyptic number.

It is an amenable number.

10012222002121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012222002121 is an equidigital number, since it uses as much as digits as its factorization.

10012222002121 is an evil number, because the sum of its binary digits is even.

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

Adding to 10012222002121 its reverse (12120022221001), we get a palindrome (22132244223122).

The spelling of 10012222002121 in words is "ten trillion, twelve billion, two hundred twenty-two million, two thousand, one hundred twenty-one".