1120221100021 has 16 divisors (see below), whose sum is σ = 1127158599168. Its totient is φ = 1113306390000.

The previous prime is 1120221100013. The next prime is 1120221100043. The reversal of 1120221100021 is 1200011220211.

It is a cyclic number.

It is not a de Polignac number, because 1120221100021 - 2³ = 1120221100013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120221099974 and 1120221100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120221140021) 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, 264762976 + ... + 264767206.

It is an arithmetic number, because the mean of its divisors is an integer number (70447412448).

Almost surely, 2^{1120221100021} is an apocalyptic number.

It is an amenable number.

1120221100021 is a deficient number, since it is larger than the sum of its proper divisors (6937499147).

1120221100021 is a wasteful number, since it uses less digits than its factorization.

1120221100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6552.

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

Adding to 1120221100021 its reverse (1200011220211), we get a palindrome (2320232320232).

The spelling of 1120221100021 in words is "one trillion, one hundred twenty billion, two hundred twenty-one million, one hundred thousand, twenty-one".