21202230022002 has 48 divisors (see below), whose sum is σ = 46484831409120. Its totient is φ = 6983411789376.

The previous prime is 21202230021991. The next prime is 21202230022003. The reversal of 21202230022002 is 20022003220212.

21202230022002 is a `hidden beast` number, since 2 + 120 + 22 + 300 + 220 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (21202230022003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1905148 + ... + 6784839.

It is an arithmetic number, because the mean of its divisors is an integer number (968433987690).

Almost surely, 2^{21202230022002} is an apocalyptic number.

21202230022002 is an abundant number, since it is smaller than the sum of its proper divisors (25282601387118).

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

21202230022002 is a wasteful number, since it uses less digits than its factorization.

21202230022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8691607 (or 8691604 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 21202230022002 its reverse (20022003220212), we get a palindrome (41224233242214).

The spelling of 21202230022002 in words is "twenty-one trillion, two hundred two billion, two hundred thirty million, twenty-two thousand, two".