10202121212213 has 16 divisors (see below), whose sum is σ = 12359795967360. Its totient is φ = 8220701339136.

The previous prime is 10202121212183. The next prime is 10202121212263. The reversal of 10202121212213 is 31221212120201.

It is not a de Polignac number, because 10202121212213 - 2⁸ = 10202121211957 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 (10202121212263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49800056 + ... + 50004497.

It is an arithmetic number, because the mean of its divisors is an integer number (772487247960).

Almost surely, 2^{10202121212213} is an apocalyptic number.

It is an amenable number.

10202121212213 is a deficient number, since it is larger than the sum of its proper divisors (2157674755147).

10202121212213 is an equidigital number, since it uses as much as digits as its factorization.

10202121212213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99805436.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 10202121212213 its reverse (31221212120201), we get a palindrome (41423333332414).

The spelling of 10202121212213 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, two hundred twelve thousand, two hundred thirteen".