221100120020102 has 16 divisors (see below), whose sum is σ = 334271826420000. Its totient is φ = 109679361422400.

The previous prime is 221100120020077. The next prime is 221100120020119. The reversal of 221100120020102 is 201020021001122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795746399 + ... + 796024202.

It is an arithmetic number, because the mean of its divisors is an integer number (20891989151250).

Almost surely, 2^{221100120020102} is an apocalyptic number.

221100120020102 is a deficient number, since it is larger than the sum of its proper divisors (113171706399898).

221100120020102 is a wasteful number, since it uses less digits than its factorization.

221100120020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591771151.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221100120020102 its reverse (201020021001122), we get a palindrome (422120141021224).

The spelling of 221100120020102 in words is "two hundred twenty-one trillion, one hundred billion, one hundred twenty million, twenty thousand, one hundred two".