220121311012123 has 8 divisors (see below), whose sum is σ = 220244124219840. Its totient is φ = 219998522764800.

The previous prime is 220121311012117. The next prime is 220121311012157. The reversal of 220121311012123 is 321210113121022.

It is a happy number.

220121311012123 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 cyclic number.

It is not a de Polignac number, because 220121311012123 - 2⁹ = 220121311011611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220121311012094 and 220121311012103.

It is not an unprimeable number, because it can be changed into a prime (220121311012223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11416398 + ... + 23886748.

It is an arithmetic number, because the mean of its divisors is an integer number (27530515527480).

Almost surely, 2^{220121311012123} is an apocalyptic number.

220121311012123 is a deficient number, since it is larger than the sum of its proper divisors (122813207717).

220121311012123 is a wasteful number, since it uses less digits than its factorization.

220121311012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12480197.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 220121311012123 its reverse (321210113121022), we get a palindrome (541331424133145).

The spelling of 220121311012123 in words is "two hundred twenty trillion, one hundred twenty-one billion, three hundred eleven million, twelve thousand, one hundred twenty-three".