10220020210121 has 2 divisors, whose sum is σ = 10220020210122. Its totient is φ = 10220020210120.

The previous prime is 10220020210117. The next prime is 10220020210129. The reversal of 10220020210121 is 12101202002201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6493267179721 + 3726753030400 = 2548189^2 + 1930480^2 .

It is a cyclic number.

It is not a de Polignac number, because 10220020210121 - 2² = 10220020210117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10220020210096 and 10220020210105.

It is not a weakly prime, because it can be changed into another prime (10220020210129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110010105060 + 5110010105061.

It is an arithmetic number, because the mean of its divisors is an integer number (5110010105061).

Almost surely, 2^{10220020210121} is an apocalyptic number.

It is an amenable number.

10220020210121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10220020210121 is an equidigital number, since it uses as much as digits as its factorization.

10220020210121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10220020210121 its reverse (12101202002201), we get a palindrome (22321222212322).

The spelling of 10220020210121 in words is "ten trillion, two hundred twenty billion, twenty million, two hundred ten thousand, one hundred twenty-one".