2202121212212 has 6 divisors (see below), whose sum is σ = 3853712121378. Its totient is φ = 1101060606104.

The previous prime is 2202121212169. The next prime is 2202121212223. The reversal of 2202121212212 is 2122121212022.

It can be written as a sum of positive squares in only one way, i.e., 1800867377296 + 401253834916 = 1341964^2 + 633446^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275265151523 + ... + 275265151530.

It is an arithmetic number, because the mean of its divisors is an integer number (642285353563).

Almost surely, 2^{2202121212212} is an apocalyptic number.

It is an amenable number.

2202121212212 is a deficient number, since it is larger than the sum of its proper divisors (1651590909166).

2202121212212 is a wasteful number, since it uses less digits than its factorization.

2202121212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550530303057 (or 550530303055 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2202121212212 its reverse (2122121212022), we get a palindrome (4324242424234).

The spelling of 2202121212212 in words is "two trillion, two hundred two billion, one hundred twenty-one million, two hundred twelve thousand, two hundred twelve".