10121000001211 has 16 divisors (see below), whose sum is σ = 11127568636800. Its totient is φ = 9128928196800.

The previous prime is 10121000001181. The next prime is 10121000001221. The reversal of 10121000001211 is 11210000012101.

It is a cyclic number.

It is not a de Polignac number, because 10121000001211 - 2¹¹ = 10120999999163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10121000001221) 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, 318231 + ... + 4510351.

It is an arithmetic number, because the mean of its divisors is an integer number (695473039800).

Almost surely, 2^{10121000001211} is an apocalyptic number.

10121000001211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10121000001211 is a deficient number, since it is larger than the sum of its proper divisors (1006568635589).

10121000001211 is a wasteful number, since it uses less digits than its factorization.

10121000001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193850.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10121000001211 its reverse (11210000012101), we get a palindrome (21331000013312).

The spelling of 10121000001211 in words is "ten trillion, one hundred twenty-one billion, one thousand, two hundred eleven".