221202020122 has 8 divisors (see below), whose sum is σ = 331843622400. Its totient is φ = 110587479324.

The previous prime is 221202020119. The next prime is 221202020159. The reversal of 221202020122 is 221020202122.

221202020122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 221202020096 and 221202020105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6744922 + ... + 6777637.

It is an arithmetic number, because the mean of its divisors is an integer number (41480452800).

Almost surely, 2^221202020122 is an apocalyptic number.

221202020122 is a deficient number, since it is larger than the sum of its proper divisors (110641602278).

221202020122 is a wasteful number, since it uses less digits than its factorization.

221202020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13530740.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221202020122 its reverse (221020202122), we get a palindrome (442222222244).

The spelling of 221202020122 in words is "two hundred twenty-one billion, two hundred two million, twenty thousand, one hundred twenty-two".