1120012022221 has 8 divisors (see below), whose sum is σ = 1131615504824. Its totient is φ = 1108409702400.

The previous prime is 1120012022209. The next prime is 1120012022251. The reversal of 1120012022221 is 1222202100211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 308012790121 + 811999232100 = 554989^2 + 901110^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1120012022221 - 2⁵ = 1120012022189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120012022195 and 1120012022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120012022251) 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, 1717171 + ... + 2277871.

It is an arithmetic number, because the mean of its divisors is an integer number (141451938103).

Almost surely, 2^{1120012022221} is an apocalyptic number.

It is an amenable number.

1120012022221 is a deficient number, since it is larger than the sum of its proper divisors (11603482603).

1120012022221 is an equidigital number, since it uses as much as digits as its factorization.

1120012022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581391.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1120012022221 its reverse (1222202100211), we get a palindrome (2342214122432).

The spelling of 1120012022221 in words is "one trillion, one hundred twenty billion, twelve million, twenty-two thousand, two hundred twenty-one".