21212022002002 has 64 divisors (see below), whose sum is σ = 36725925761280. Its totient is φ = 9110372223744.

The previous prime is 21212022001969. The next prime is 21212022002021. The reversal of 21212022002002 is 20020022021212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213001473 + ... + 213101035.

It is an arithmetic number, because the mean of its divisors is an integer number (573842590020).

Almost surely, 2^{21212022002002} is an apocalyptic number.

21212022002002 is a deficient number, since it is larger than the sum of its proper divisors (15513903759278).

21212022002002 is a wasteful number, since it uses less digits than its factorization.

21212022002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109267.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21212022002002 its reverse (20020022021212), we get a palindrome (41232044023214).

The spelling of 21212022002002 in words is "twenty-one trillion, two hundred twelve billion, twenty-two million, two thousand, two".