1112101221021 has 32 divisors (see below), whose sum is σ = 1706606323968. Its totient is φ = 631006225920.

The previous prime is 1112101221019. The next prime is 1112101221037. The reversal of 1112101221021 is 1201221012111.

It is a happy number.

It is not a de Polignac number, because 1112101221021 - 2¹ = 1112101221019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112101221041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2258025 + ... + 2706081.

It is an arithmetic number, because the mean of its divisors is an integer number (53331447624).

Almost surely, 2^{1112101221021} is an apocalyptic number.

It is an amenable number.

1112101221021 is a deficient number, since it is larger than the sum of its proper divisors (594505102947).

1112101221021 is a wasteful number, since it uses less digits than its factorization.

1112101221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448901.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1112101221021 its reverse (1201221012111), we get a palindrome (2313322233132).

The spelling of 1112101221021 in words is "one trillion, one hundred twelve billion, one hundred one million, two hundred twenty-one thousand, twenty-one".