1120220021028 has 48 divisors (see below), whose sum is σ = 2678768547840. Its totient is φ = 364158975264.

The previous prime is 1120220021027. The next prime is 1120220021131. The reversal of 1120220021028 is 8201200220211.

It is a junction number, because it is equal to n+sod(n) for n = 1120220020995 and 1120220021013.

It is not an unprimeable number, because it can be changed into a prime (1120220021021) 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, 1343868 + ... + 2011571.

It is an arithmetic number, because the mean of its divisors is an integer number (55807678080).

Almost surely, 2^{1120220021028} is an apocalyptic number.

It is an amenable number.

1120220021028 is an abundant number, since it is smaller than the sum of its proper divisors (1558548526812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1120220021028 is a wasteful number, since it uses less digits than its factorization.

1120220021028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356136 (or 3356134 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 1120220021028 its reverse (8201200220211), we get a palindrome (9321420241239).

The spelling of 1120220021028 in words is "one trillion, one hundred twenty billion, two hundred twenty million, twenty-one thousand, twenty-eight".