1120021002 has 24 divisors (see below), whose sum is σ = 2449395936. Its totient is φ = 369850536.

The previous prime is 1120020997. The next prime is 1120021003. The reversal of 1120021002 is 2001200211.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1120021003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288838 + ... + 292689.

It is an arithmetic number, because the mean of its divisors is an integer number (102058164).

Almost surely, 2^1120021002 is an apocalyptic number.

1120021002 is an abundant number, since it is smaller than the sum of its proper divisors (1329374934).

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

1120021002 is a wasteful number, since it uses less digits than its factorization.

1120021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581642 (or 581639 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1120021002 is about 33466.7148372827. The cubic root of 1120021002 is about 1038.5053115654.

Adding to 1120021002 its reverse (2001200211), we get a palindrome (3121221213).

The spelling of 1120021002 in words is "one billion, one hundred twenty million, twenty-one thousand, two".