1102021002 has 12 divisors (see below), whose sum is σ = 2387712210. Its totient is φ = 367340328.

The previous prime is 1102020979. The next prime is 1102021003. The reversal of 1102021002 is 2001202011.

It can be written as a sum of positive squares in only one way, i.e., 901260441 + 200760561 = 30021^2 + 14169^2 .

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 (1102021003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30611677 + ... + 30611712.

Almost surely, 2^1102021002 is an apocalyptic number.

1102021002 is an abundant number, since it is smaller than the sum of its proper divisors (1285691208).

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

1102021002 is a wasteful number, since it uses less digits than its factorization.

1102021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61223397 (or 61223394 counting only the distinct ones).

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

The square root of 1102021002 is about 33196.7016735097. The cubic root of 1102021002 is about 1032.9119226731.

Adding to 1102021002 its reverse (2001202011), we get a palindrome (3103223013).

The spelling of 1102021002 in words is "one billion, one hundred two million, twenty-one thousand, two".