220231121132001 has 8 divisors (see below), whose sum is σ = 335590279820224. Its totient is φ = 125846354932560.

The previous prime is 220231121131939. The next prime is 220231121132003. The reversal of 220231121132001 is 100231121132022.

220231121132001 is digitally balanced in base 2 and base 4, because in such bases 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 not a de Polignac number, because 220231121132001 - 2¹¹ = 220231121129953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10487196244381 = 220231121132001 / (2 + 2 + 0 + 2 + 3 + 1 + 1 + 2 + 1 + 1 + 3 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220231121132003) 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, 5243598122170 + ... + 5243598122211.

It is an arithmetic number, because the mean of its divisors is an integer number (41948784977528).

Almost surely, 2^{220231121132001} is an apocalyptic number.

220231121132001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

220231121132001 is a deficient number, since it is larger than the sum of its proper divisors (115359158688223).

220231121132001 is a wasteful number, since it uses less digits than its factorization.

220231121132001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10487196244391.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 220231121132001 its sum of digits (21), we get a palindrome (220231121132022).

Adding to 220231121132001 its reverse (100231121132022), we get a palindrome (320462242264023).

The spelling of 220231121132001 in words is "two hundred twenty trillion, two hundred thirty-one billion, one hundred twenty-one million, one hundred thirty-two thousand, one".