10212312120121 has 8 divisors (see below), whose sum is σ = 10352334082184. Its totient is φ = 10072293598080.

The previous prime is 10212312120091. The next prime is 10212312120151. The reversal of 10212312120121 is 12102121321201.

It is an interprime number because it is at equal distance from previous prime (10212312120091) and next prime (10212312120151).

It can be written as a sum of positive squares in 4 ways, for example, as 159836042025 + 10052476078096 = 399795^2 + 3170564^2 .

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 10212312120121 - 2³⁷ = 10074873166649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10212312120151) 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, 5431411 + ... + 7065751.

It is an arithmetic number, because the mean of its divisors is an integer number (1294041760273).

Almost surely, 2^{10212312120121} is an apocalyptic number.

It is an amenable number.

10212312120121 is a deficient number, since it is larger than the sum of its proper divisors (140021962063).

10212312120121 is an equidigital number, since it uses as much as digits as its factorization.

10212312120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720011.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 10212312120121 its reverse (12102121321201), we get a palindrome (22314433441322).

The spelling of 10212312120121 in words is "ten trillion, two hundred twelve billion, three hundred twelve million, one hundred twenty thousand, one hundred twenty-one".