212121112022202 has 8 divisors (see below), whose sum is σ = 424242224044416. Its totient is φ = 70707037340732.

The previous prime is 212121112022173. The next prime is 212121112022203. The reversal of 212121112022202 is 202220211121212.

It is a sphenic number, since it is the product of 3 distinct primes.

212121112022202 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (212121112022203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17676759335178 + ... + 17676759335189.

It is an arithmetic number, because the mean of its divisors is an integer number (53030278005552).

Almost surely, 2^{212121112022202} is an apocalyptic number.

212121112022202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

212121112022202 is a wasteful number, since it uses less digits than its factorization.

212121112022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35353518670372.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212121112022202 its reverse (202220211121212), we get a palindrome (414341323143414).

The spelling of 212121112022202 in words is "two hundred twelve trillion, one hundred twenty-one billion, one hundred twelve million, twenty-two thousand, two hundred two".