10121215205211 has 16 divisors (see below), whose sum is σ = 14739526076160. Its totient is φ = 6126670444320.

The previous prime is 10121215205203. The next prime is 10121215205251. The reversal of 10121215205211 is 11250251212101.

It is not a de Polignac number, because 10121215205211 - 2³ = 10121215205203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10121215205251) 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, 184956655 + ... + 185011368.

It is an arithmetic number, because the mean of its divisors is an integer number (921220379760).

Almost surely, 2^{10121215205211} is an apocalyptic number.

10121215205211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10121215205211 is a deficient number, since it is larger than the sum of its proper divisors (4618310870949).

10121215205211 is a wasteful number, since it uses less digits than its factorization.

10121215205211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369968866.

The product of its (nonzero) digits is 400, while the sum is 24.

Adding to 10121215205211 its reverse (11250251212101), we get a palindrome (21371466417312).

The spelling of 10121215205211 in words is "ten trillion, one hundred twenty-one billion, two hundred fifteen million, two hundred five thousand, two hundred eleven".