212121220002202 has 32 divisors (see below), whose sum is σ = 382777372454400. Its totient is φ = 86123901425328.

The previous prime is 212121220002193. The next prime is 212121220002257. The reversal of 212121220002202 is 202200022121212.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 212121220002202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45041949 + ... + 49527967.

It is an arithmetic number, because the mean of its divisors is an integer number (11961792889200).

Almost surely, 2^{212121220002202} is an apocalyptic number.

212121220002202 is a deficient number, since it is larger than the sum of its proper divisors (170656152452198).

212121220002202 is a wasteful number, since it uses less digits than its factorization.

212121220002202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663810.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212121220002202 its reverse (202200022121212), we get a palindrome (414321242123414).

The spelling of 212121220002202 in words is "two hundred twelve trillion, one hundred twenty-one billion, two hundred twenty million, two thousand, two hundred two".