22121201210222 has 4 divisors (see below), whose sum is σ = 33181801815336. Its totient is φ = 11060600605110.

The previous prime is 22121201210201. The next prime is 22121201210231. The reversal of 22121201210222 is 22201210212122.

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

It is a junction number, because it is equal to n+sod(n) for n = 22121201210194 and 22121201210203.

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, 5530300302554 + ... + 5530300302557.

It is an arithmetic number, because the mean of its divisors is an integer number (8295450453834).

Almost surely, 2^{22121201210222} is an apocalyptic number.

22121201210222 is a deficient number, since it is larger than the sum of its proper divisors (11060600605114).

22121201210222 is a wasteful number, since it uses less digits than its factorization.

22121201210222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11060600605113.

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

Adding to 22121201210222 its reverse (22201210212122), we get a palindrome (44322411422344).

The spelling of 22121201210222 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred one million, two hundred ten thousand, two hundred twenty-two".