10111221221000 has 64 divisors (see below), whose sum is σ = 23784133800960. Its totient is φ = 4023313080000.

The previous prime is 10111221220963. The next prime is 10111221221033. The reversal of 10111221221000 is 12212211101.

10111221221000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26278166 + ... + 26660165.

It is an arithmetic number, because the mean of its divisors is an integer number (371627090640).

Almost surely, 2^{10111221221000} is an apocalyptic number.

10111221221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111221221000 is an abundant number, since it is smaller than the sum of its proper divisors (13672912579960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10111221221000 is a wasteful number, since it uses less digits than its factorization.

10111221221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52938543 (or 52938529 counting only the distinct ones).

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

Adding to 10111221221000 its reverse (12212211101), we get a palindrome (10123433432101).

The spelling of 10111221221000 in words is "ten trillion, one hundred eleven billion, two hundred twenty-one million, two hundred twenty-one thousand".