221121210020222 has 32 divisors (see below), whose sum is σ = 339907838679552. Its totient is φ = 107850755621664.

The previous prime is 221121210020209. The next prime is 221121210020267. The reversal of 221121210020222 is 222020012121122.

It is a junction number, because it is equal to n+sod(n) for n = 221121210020194 and 221121210020203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 770187503 + ... + 770474549.

It is an arithmetic number, because the mean of its divisors is an integer number (10622119958736).

Almost surely, 2^{221121210020222} is an apocalyptic number.

221121210020222 is a deficient number, since it is larger than the sum of its proper divisors (118786628659330).

221121210020222 is a wasteful number, since it uses less digits than its factorization.

221121210020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343032.

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

Adding to 221121210020222 its reverse (222020012121122), we get a palindrome (443141222141344).

The spelling of 221121210020222 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, two hundred ten million, twenty thousand, two hundred twenty-two".