220121011222103 has 16 divisors (see below), whose sum is σ = 225061945886880. Its totient is φ = 215239229466624.

The previous prime is 220121011222097. The next prime is 220121011222111. The reversal of 220121011222103 is 301222110121022.

It is a cyclic number.

It is not a de Polignac number, because 220121011222103 - 2⁴² = 215722964710999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220121011222163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20230073 + ... + 29146146.

It is an arithmetic number, because the mean of its divisors is an integer number (14066371617930).

Almost surely, 2^{220121011222103} is an apocalyptic number.

220121011222103 is a deficient number, since it is larger than the sum of its proper divisors (4940934664777).

220121011222103 is a wasteful number, since it uses less digits than its factorization.

220121011222103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49376818.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 220121011222103 its reverse (301222110121022), we get a palindrome (521343121343125).

The spelling of 220121011222103 in words is "two hundred twenty trillion, one hundred twenty-one billion, eleven million, two hundred twenty-two thousand, one hundred three".