221220012113030 has 64 divisors (see below), whose sum is σ = 456053550455808. Its totient is φ = 75684948704640.

The previous prime is 221220012112999. The next prime is 221220012113117. The reversal of 221220012113030 is 30311210022122.

It is a junction number, because it is equal to n+sod(n) for n = 221220012112993 and 221220012113011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68707799 + ... + 71855421.

It is an arithmetic number, because the mean of its divisors is an integer number (7125836725872).

Almost surely, 2^{221220012113030} is an apocalyptic number.

221220012113030 is an abundant number, since it is smaller than the sum of its proper divisors (234833538342778).

221220012113030 is a wasteful number, since it uses less digits than its factorization.

221220012113030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149781.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 221220012113030 its reverse (30311210022122), we get a palindrome (251531222135152).

The spelling of 221220012113030 in words is "two hundred twenty-one trillion, two hundred twenty billion, twelve million, one hundred thirteen thousand, thirty".