1120101221221 has 4 divisors (see below), whose sum is σ = 1147420763244. Its totient is φ = 1092781679200.

The previous prime is 1120101221153. The next prime is 1120101221243. The reversal of 1120101221221 is 1221221010211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 372723681121 + 747377540100 = 610511^2 + 864510^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120101221221 - 2²³ = 1120092832613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120101221195 and 1120101221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120501221221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13659770950 + ... + 13659771031.

It is an arithmetic number, because the mean of its divisors is an integer number (286855190811).

Almost surely, 2^{1120101221221} is an apocalyptic number.

It is an amenable number.

1120101221221 is a deficient number, since it is larger than the sum of its proper divisors (27319542023).

1120101221221 is an equidigital number, since it uses as much as digits as its factorization.

1120101221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27319542022.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1120101221221 its reverse (1221221010211), we get a palindrome (2341322231432).

The spelling of 1120101221221 in words is "one trillion, one hundred twenty billion, one hundred one million, two hundred twenty-one thousand, two hundred twenty-one".