10111222011021 has 16 divisors (see below), whose sum is σ = 13526986158720. Its totient is φ = 6718157946560.

The previous prime is 10111222011019. The next prime is 10111222011097. The reversal of 10111222011021 is 12011022211101.

It is a happy number.

10111222011021 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 10111222011021 - 2¹ = 10111222011019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111222019021) 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, 842250 + ... + 4575131.

It is an arithmetic number, because the mean of its divisors is an integer number (845436634920).

Almost surely, 2^{10111222011021} is an apocalyptic number.

It is an amenable number.

10111222011021 is a deficient number, since it is larger than the sum of its proper divisors (3415764147699).

10111222011021 is a wasteful number, since it uses less digits than its factorization.

10111222011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5419476.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10111222011021 its reverse (12011022211101), we get a palindrome (22122244222122).

The spelling of 10111222011021 in words is "ten trillion, one hundred eleven billion, two hundred twenty-two million, eleven thousand, twenty-one".