102021011002 has 32 divisors (see below), whose sum is σ = 157488249600. Its totient is φ = 49548189888.

The previous prime is 102021010991. The next prime is 102021011009. The reversal of 102021011002 is 200110120201.

It is a self number, because there is not a number n which added to its sum of digits gives 102021011002.

It is not an unprimeable number, because it can be changed into a prime (102021011009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4709548 + ... + 4731160.

It is an arithmetic number, because the mean of its divisors is an integer number (4921507800).

Almost surely, 2^102021011002 is an apocalyptic number.

102021011002 is a deficient number, since it is larger than the sum of its proper divisors (55467238598).

102021011002 is a wasteful number, since it uses less digits than its factorization.

102021011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22150.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102021011002 its reverse (200110120201), we get a palindrome (302131131203).

The spelling of 102021011002 in words is "one hundred two billion, twenty-one million, eleven thousand, two".