220121454052471 has 2 divisors, whose sum is σ = 220121454052472. Its totient is φ = 220121454052470.

The previous prime is 220121454052433. The next prime is 220121454052501. The reversal of 220121454052471 is 174250454121022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220121454052471 is a prime.

It is a super-3 number, since 3×220121454052471³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220121454032471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060727026235 + 110060727026236.

It is an arithmetic number, because the mean of its divisors is an integer number (110060727026236).

Almost surely, 2^{220121454052471} is an apocalyptic number.

220121454052471 is a deficient number, since it is larger than the sum of its proper divisors (1).

220121454052471 is an equidigital number, since it uses as much as digits as its factorization.

220121454052471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 179200, while the sum is 40.

The spelling of 220121454052471 in words is "two hundred twenty trillion, one hundred twenty-one billion, four hundred fifty-four million, fifty-two thousand, four hundred seventy-one".