2121211202222 has 8 divisors (see below), whose sum is σ = 3636362060976. Its totient is φ = 909090515232.

The previous prime is 2121211202171. The next prime is 2121211202267. The reversal of 2121211202222 is 2222021121212.

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

It is a junction number, because it is equal to n+sod(n) for n = 2121211202194 and 2121211202203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75757542923 + ... + 75757542950.

It is an arithmetic number, because the mean of its divisors is an integer number (454545257622).

Almost surely, 2^{2121211202222} is an apocalyptic number.

2121211202222 is a deficient number, since it is larger than the sum of its proper divisors (1515150858754).

2121211202222 is a wasteful number, since it uses less digits than its factorization.

2121211202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151515085882.

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

Adding to 2121211202222 its reverse (2222021121212), we get a palindrome (4343232323434).

The spelling of 2121211202222 in words is "two trillion, one hundred twenty-one billion, two hundred eleven million, two hundred two thousand, two hundred twenty-two".