1120101011221 has 4 divisors (see below), whose sum is σ = 1120139530444. Its totient is φ = 1120062492000.

The previous prime is 1120101011213. The next prime is 1120101011291. The reversal of 1120101011221 is 1221101010211.

It is a happy number.

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 95086506321 + 1025014504900 = 308361^2 + 1012430^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120101011221 - 2³ = 1120101011213 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 (1120101011291) 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, 19215960 + ... + 19274161.

It is an arithmetic number, because the mean of its divisors is an integer number (280034882611).

Almost surely, 2^{1120101011221} is an apocalyptic number.

It is an amenable number.

1120101011221 is a deficient number, since it is larger than the sum of its proper divisors (38519223).

1120101011221 is an equidigital number, since it uses as much as digits as its factorization.

1120101011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38519222.

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

Adding to 1120101011221 its reverse (1221101010211), we get a palindrome (2341202021432).

The spelling of 1120101011221 in words is "one trillion, one hundred twenty billion, one hundred one million, eleven thousand, two hundred twenty-one".