10111221001010 has 32 divisors (see below), whose sum is σ = 18232278370992. Its totient is φ = 4037360716800.

The previous prime is 10111221001001. The next prime is 10111221001043. The reversal of 10111221001010 is 1010012211101.

10111221001010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 3658295052889 + 6452925948121 = 1912667^2 + 2540261^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10111221000982 and 10111221001000.

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, 65149022 + ... + 65304038.

Almost surely, 2^{10111221001010} is an apocalyptic number.

10111221001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10111221001010 is a deficient number, since it is larger than the sum of its proper divisors (8121057369982).

10111221001010 is a wasteful number, since it uses less digits than its factorization.

10111221001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166478.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10111221001010 its reverse (1010012211101), we get a palindrome (11121233212111).

The spelling of 10111221001010 in words is "ten trillion, one hundred eleven billion, two hundred twenty-one million, one thousand, ten".