1110101021221 has 16 divisors (see below), whose sum is σ = 1134838149120. Its totient is φ = 1085620354560.

The previous prime is 1110101021209. The next prime is 1110101021233. The reversal of 1110101021221 is 1221201010111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1110101021209) and next prime (1110101021233).

It is a cyclic number.

It is not a de Polignac number, because 1110101021221 - 2⁵ = 1110101021189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110101021261) 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, 56950645 + ... + 56970133.

It is an arithmetic number, because the mean of its divisors is an integer number (70927384320).

Almost surely, 2^{1110101021221} is an apocalyptic number.

It is an amenable number.

1110101021221 is a deficient number, since it is larger than the sum of its proper divisors (24737127899).

1110101021221 is a wasteful number, since it uses less digits than its factorization.

1110101021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26004.

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

Adding to 1110101021221 its reverse (1221201010111), we get a palindrome (2331302031332).

The spelling of 1110101021221 in words is "one trillion, one hundred ten billion, one hundred one million, twenty-one thousand, two hundred twenty-one".