10111221220001 has 16 divisors (see below), whose sum is σ = 11272942264320. Its totient is φ = 8990191878480.

The previous prime is 10111221219949. The next prime is 10111221220013. The reversal of 10111221220001 is 10002212211101.

10111221220001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10111221220001 - 2³⁸ = 9836343313057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10111221220021) 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, 6051551 + ... + 7539476.

It is an arithmetic number, because the mean of its divisors is an integer number (704558891520).

Almost surely, 2^{10111221220001} is an apocalyptic number.

10111221220001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10111221220001 is a deficient number, since it is larger than the sum of its proper divisors (1161721044319).

10111221220001 is a wasteful number, since it uses less digits than its factorization.

10111221220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13592524.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10111221220001 its reverse (10002212211101), we get a palindrome (20113433431102).

The spelling of 10111221220001 in words is "ten trillion, one hundred eleven billion, two hundred twenty-one million, two hundred twenty thousand, one".