11101221021010 has 16 divisors (see below), whose sum is σ = 20069456347800. Its totient is φ = 4421097628416.

The previous prime is 11101221020987. The next prime is 11101221021043. The reversal of 11101221021010 is 1012012210111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8376156317281 + 2725064703729 = 2894159^2 + 1650777^2 .

It is a super-3 number, since 3×11101221021010³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2423845095 + ... + 2423849674.

Almost surely, 2^{11101221021010} is an apocalyptic number.

11101221021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11101221021010 is a deficient number, since it is larger than the sum of its proper divisors (8968235326790).

11101221021010 is a wasteful number, since it uses less digits than its factorization.

11101221021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4847695005.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11101221021010 its reverse (1012012210111), we get a palindrome (12113233231121).

The spelling of 11101221021010 in words is "eleven trillion, one hundred one billion, two hundred twenty-one million, twenty-one thousand, ten".