221203020352122 has 32 divisors (see below), whose sum is σ = 491562757162560. Its totient is φ = 73734266660400.

The previous prime is 221203020352117. The next prime is 221203020352163. The reversal of 221203020352122 is 221253020302122.

221203020352122 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 0 + 302 + 0 + 352 + 1 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 95039997 + ... + 97339647.

It is an arithmetic number, because the mean of its divisors is an integer number (15361336161330).

Almost surely, 2^{221203020352122} is an apocalyptic number.

221203020352122 is an abundant number, since it is smaller than the sum of its proper divisors (270359736810438).

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

221203020352122 is a wasteful number, since it uses less digits than its factorization.

221203020352122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080955 (or 4080949 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 221203020352122 its reverse (221253020302122), we get a palindrome (442456040654244).

The spelling of 221203020352122 in words is "two hundred twenty-one trillion, two hundred three billion, twenty million, three hundred fifty-two thousand, one hundred twenty-two".