1110221210021 has 48 divisors (see below), whose sum is σ = 1417485484800. Its totient is φ = 851002521600.

The previous prime is 1110221209967. The next prime is 1110221210023. The reversal of 1110221210021 is 1200121220111.

It is a de Polignac number, because none of the positive numbers 2^k-1110221210021 is a prime.

It is a super-2 number, since 2×1110221210021² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1110221209978 and 1110221210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110221210023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26980955 + ... + 27022071.

It is an arithmetic number, because the mean of its divisors is an integer number (29530947600).

Almost surely, 2^{1110221210021} is an apocalyptic number.

1110221210021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1110221210021 is a deficient number, since it is larger than the sum of its proper divisors (307264274779).

1110221210021 is a wasteful number, since it uses less digits than its factorization.

1110221210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41666 (or 41655 counting only the distinct ones).

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

Adding to 1110221210021 its reverse (1200121220111), we get a palindrome (2310342430132).

The spelling of 1110221210021 in words is "one trillion, one hundred ten billion, two hundred twenty-one million, two hundred ten thousand, twenty-one".