21202030002 has 16 divisors (see below), whose sum is σ = 42405501600. Its totient is φ = 7067103072.

The previous prime is 21202029973. The next prime is 21202030037. The reversal of 21202030002 is 20003020212.

It is a self number, because there is not a number n which added to its sum of digits gives 21202030002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274353 + ... + 343035.

It is an arithmetic number, because the mean of its divisors is an integer number (2650343850).

Almost surely, 2^21202030002 is an apocalyptic number.

21202030002 is an abundant number, since it is smaller than the sum of its proper divisors (21203471598).

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

21202030002 is a wasteful number, since it uses less digits than its factorization.

21202030002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120137.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 21202030002 its reverse (20003020212), we get a palindrome (41205050214).

The spelling of 21202030002 in words is "twenty-one billion, two hundred two million, thirty thousand, two".