221420211220330 has 64 divisors (see below), whose sum is σ = 406820705879808. Its totient is φ = 86748140344320.

The previous prime is 221420211220291. The next prime is 221420211220367. The reversal of 221420211220330 is 33022112024122.

It is a junction number, because it is equal to n+sod(n) for n = 221420211220295 and 221420211220304.

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, 600973549 + ... + 601341871.

It is an arithmetic number, because the mean of its divisors is an integer number (6356573529372).

Almost surely, 2^{221420211220330} is an apocalyptic number.

221420211220330 is a deficient number, since it is larger than the sum of its proper divisors (185400494659478).

221420211220330 is a wasteful number, since it uses less digits than its factorization.

221420211220330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373951.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 221420211220330 its reverse (33022112024122), we get a palindrome (254442323244452).

The spelling of 221420211220330 in words is "two hundred twenty-one trillion, four hundred twenty billion, two hundred eleven million, two hundred twenty thousand, three hundred thirty".