10212231206161 has 4 divisors (see below), whose sum is σ = 10313342406324. Its totient is φ = 10111120006000.

The previous prime is 10212231206137. The next prime is 10212231206197. The reversal of 10212231206161 is 16160213221201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9065404396161 + 1146826810000 = 3010881^2 + 1070900^2 .

It is a cyclic number.

It is not a de Polignac number, because 10212231206161 - 2²³ = 10212222817553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10212231206101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50555599930 + ... + 50555600131.

It is an arithmetic number, because the mean of its divisors is an integer number (2578335601581).

Almost surely, 2^{10212231206161} is an apocalyptic number.

It is an amenable number.

10212231206161 is a deficient number, since it is larger than the sum of its proper divisors (101111200163).

10212231206161 is a wasteful number, since it uses less digits than its factorization.

10212231206161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101111200162.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 10212231206161 its reverse (16160213221201), we get a palindrome (26372444427362).

The spelling of 10212231206161 in words is "ten trillion, two hundred twelve billion, two hundred thirty-one million, two hundred six thousand, one hundred sixty-one".