1101120020221 has 8 divisors (see below), whose sum is σ = 1186413611040. Its totient is φ = 1015911008112.

The previous prime is 1101120020207. The next prime is 1101120020237. The reversal of 1101120020221 is 1220200211011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1101120020221 - 2⁹ = 1101120019709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101120020261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21117631 + ... + 21169708.

It is an arithmetic number, because the mean of its divisors is an integer number (148301701380).

Almost surely, 2^{1101120020221} is an apocalyptic number.

It is an amenable number.

1101120020221 is a deficient number, since it is larger than the sum of its proper divisors (85293590819).

1101120020221 is a wasteful number, since it uses less digits than its factorization.

1101120020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42289355.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1101120020221 its reverse (1220200211011), we get a palindrome (2321320231232).

The spelling of 1101120020221 in words is "one trillion, one hundred one billion, one hundred twenty million, twenty thousand, two hundred twenty-one".