11110101221021 has 16 divisors (see below), whose sum is σ = 12256802426880. Its totient is φ = 9986191480320.

The previous prime is 11110101221017. The next prime is 11110101221033. The reversal of 11110101221021 is 12012210101111.

It is not a de Polignac number, because 11110101221021 - 2² = 11110101221017 is a prime.

It is a super-3 number, since 3×11110101221021³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11110101220987 and 11110101221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110101221081) 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, 24586901 + ... + 25034693.

It is an arithmetic number, because the mean of its divisors is an integer number (766050151680).

Almost surely, 2^{11110101221021} is an apocalyptic number.

11110101221021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11110101221021 is a deficient number, since it is larger than the sum of its proper divisors (1146701205859).

11110101221021 is a wasteful number, since it uses less digits than its factorization.

11110101221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473236.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11110101221021 its reverse (12012210101111), we get a palindrome (23122311322132).

The spelling of 11110101221021 in words is "eleven trillion, one hundred ten billion, one hundred one million, two hundred twenty-one thousand, twenty-one".