212121101100202 has 32 divisors (see below), whose sum is σ = 399417307084800. Its totient is φ = 82379819581488.

The previous prime is 212121101100173. The next prime is 212121101100239. The reversal of 212121101100202 is 202001101121212.

It is a super-3 number, since 3×212121101100202³ (a number of 44 digits) contains 333 as substring.

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, 17335814502 + ... + 17335826737.

It is an arithmetic number, because the mean of its divisors is an integer number (12481790846400).

Almost surely, 2^{212121101100202} is an apocalyptic number.

212121101100202 is a deficient number, since it is larger than the sum of its proper divisors (187296205984598).

212121101100202 is a wasteful number, since it uses less digits than its factorization.

212121101100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34671641290.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212121101100202 its reverse (202001101121212), we get a palindrome (414122202221414).

The spelling of 212121101100202 in words is "two hundred twelve trillion, one hundred twenty-one billion, one hundred one million, one hundred thousand, two hundred two".