212222201202122 has 4 divisors (see below), whose sum is σ = 318333301803186. Its totient is φ = 106111100601060.

The previous prime is 212222201202091. The next prime is 212222201202139. The reversal of 212222201202122 is 221202102222212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 193204412240401 + 19017788961721 = 13899799^2 + 4360939^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53055550300529 + ... + 53055550300532.

Almost surely, 2^{212222201202122} is an apocalyptic number.

212222201202122 is a deficient number, since it is larger than the sum of its proper divisors (106111100601064).

212222201202122 is a wasteful number, since it uses less digits than its factorization.

212222201202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106111100601063.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 212222201202122 its reverse (221202102222212), we get a palindrome (433424303424334).

The spelling of 212222201202122 in words is "two hundred twelve trillion, two hundred twenty-two billion, two hundred one million, two hundred two thousand, one hundred twenty-two".