221120022212210 has 64 divisors (see below), whose sum is σ = 459943079518080. Its totient is φ = 75644086533120.

The previous prime is 221120022212207. The next prime is 221120022212417. The reversal of 221120022212210 is 12212220021122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21813824 + ... + 30299883.

It is an arithmetic number, because the mean of its divisors is an integer number (7186610617470).

Almost surely, 2^{221120022212210} is an apocalyptic number.

221120022212210 is an abundant number, since it is smaller than the sum of its proper divisors (238823057305870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221120022212210 is a wasteful number, since it uses less digits than its factorization.

221120022212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52116011.

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

Adding to 221120022212210 its reverse (12212220021122), we get a palindrome (233332242233332).

The spelling of 221120022212210 in words is "two hundred twenty-one trillion, one hundred twenty billion, twenty-two million, two hundred twelve thousand, two hundred ten".