11101221010 has 32 divisors (see below), whose sum is σ = 22946068800. Its totient is φ = 3824343360.

The previous prime is 11101220989. The next prime is 11101221041. The reversal of 11101221010 is 1012210111.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 2653705 + ... + 2657884.

It is an arithmetic number, because the mean of its divisors is an integer number (717064650).

Almost surely, 2^11101221010 is an apocalyptic number.

11101221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11101221010 is an abundant number, since it is smaller than the sum of its proper divisors (11844847790).

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

11101221010 is a wasteful number, since it uses less digits than its factorization.

11101221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311626.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11101221010 its reverse (1012210111), we get a palindrome (12113431121).

It can be divided in two parts, 1 and 1101221010, that added together give a palindrome (1101221011).

The spelling of 11101221010 in words is "eleven billion, one hundred one million, two hundred twenty-one thousand, ten".