220120133133221 has 2 divisors, whose sum is σ = 220120133133222. Its totient is φ = 220120133133220.

The previous prime is 220120133133203. The next prime is 220120133133287. The reversal of 220120133133221 is 122331331021022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215825892348196 + 4294240785025 = 14691014^2 + 2072255^2 .

It is a cyclic number.

It is not a de Polignac number, because 220120133133221 - 2¹⁰ = 220120133132197 is a prime.

It is a super-3 number, since 3×220120133133221³ (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 (220120133130221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060066566610 + 110060066566611.

It is an arithmetic number, because the mean of its divisors is an integer number (110060066566611).

Almost surely, 2^{220120133133221} is an apocalyptic number.

It is an amenable number.

220120133133221 is a deficient number, since it is larger than the sum of its proper divisors (1).

220120133133221 is an equidigital number, since it uses as much as digits as its factorization.

220120133133221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 220120133133221 its reverse (122331331021022), we get a palindrome (342451464154243).

The spelling of 220120133133221 in words is "two hundred twenty trillion, one hundred twenty billion, one hundred thirty-three million, one hundred thirty-three thousand, two hundred twenty-one".