1120221021 has 8 divisors (see below), whose sum is σ = 1493784864. Its totient is φ = 746735600.

The previous prime is 1120220977. The next prime is 1120221043. The reversal of 1120221021 is 1201220211.

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 1120221021 - 2¹⁸ = 1119958877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1120220988 and 1120221006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120221071) 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, 37450 + ... + 60356.

It is an arithmetic number, because the mean of its divisors is an integer number (186723108).

Almost surely, 2^1120221021 is an apocalyptic number.

It is an amenable number.

1120221021 is a deficient number, since it is larger than the sum of its proper divisors (373563843).

1120221021 is a wasteful number, since it uses less digits than its factorization.

1120221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39211.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1120221021 is about 33469.7030312490. The cubic root of 1120221021 is about 1038.5671283913.

Adding to 1120221021 its reverse (1201220211), we get a palindrome (2321441232).

It can be divided in two parts, 11202 and 21021, that added together give a palindrome (32223).

The spelling of 1120221021 in words is "one billion, one hundred twenty million, two hundred twenty-one thousand, twenty-one".