10121111219999 has 24 divisors (see below), whose sum is σ = 11439849778560. Its totient is φ = 8933395360032.

The previous prime is 10121111219981. The next prime is 10121111220001. The reversal of 10121111219999 is 99991211112101.

10121111219999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10121111219999 - 2¹² = 10121111215903 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 (10121111216999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11303612 + ... + 12166094.

It is an arithmetic number, because the mean of its divisors is an integer number (476660407440).

Almost surely, 2^{10121111219999} is an apocalyptic number.

10121111219999 is a deficient number, since it is larger than the sum of its proper divisors (1318738558561).

10121111219999 is a wasteful number, since it uses less digits than its factorization.

10121111219999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865551 (or 865538 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 47.

The spelling of 10121111219999 in words is "ten trillion, one hundred twenty-one billion, one hundred eleven million, two hundred nineteen thousand, nine hundred ninety-nine".