220120121200601 has 2 divisors, whose sum is σ = 220120121200602. Its totient is φ = 220120121200600.

The previous prime is 220120121200583. The next prime is 220120121200643. The reversal of 220120121200601 is 106002121021022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158200549728400 + 61919571472201 = 12577780^2 + 7868899^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220120121200601 is a prime.

It is a super-2 number, since 2×220120121200601² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220120121200901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060060600300 + 110060060600301.

It is an arithmetic number, because the mean of its divisors is an integer number (110060060600301).

Almost surely, 2^{220120121200601} is an apocalyptic number.

It is an amenable number.

220120121200601 is a deficient number, since it is larger than the sum of its proper divisors (1).

220120121200601 is an equidigital number, since it uses as much as digits as its factorization.

220120121200601 is an odious number, because the sum of its binary digits is odd.

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

Adding to 220120121200601 its reverse (106002121021022), we get a palindrome (326122242221623).

The spelling of 220120121200601 in words is "two hundred twenty trillion, one hundred twenty billion, one hundred twenty-one million, two hundred thousand, six hundred one".