220000021977353 has 2 divisors, whose sum is σ = 220000021977354. Its totient is φ = 220000021977352.

The previous prime is 220000021977317. The next prime is 220000021977371. The reversal of 220000021977353 is 353779120000022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219184708692544 + 815313284809 = 14804888^2 + 902947^2 .

It is a cyclic number.

It is not a de Polignac number, because 220000021977353 - 2¹⁴ = 220000021960969 is a prime.

It is a super-3 number, since 3×220000021977353³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220000021977353.

It is not a weakly prime, because it can be changed into another prime (220000021977053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110000010988676 + 110000010988677.

It is an arithmetic number, because the mean of its divisors is an integer number (110000010988677).

Almost surely, 2^{220000021977353} is an apocalyptic number.

It is an amenable number.

220000021977353 is a deficient number, since it is larger than the sum of its proper divisors (1).

220000021977353 is an equidigital number, since it uses as much as digits as its factorization.

220000021977353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 41.

Adding to 220000021977353 its reverse (353779120000022), we get a palindrome (573779141977375).

The spelling of 220000021977353 in words is "two hundred twenty trillion, twenty-one million, nine hundred seventy-seven thousand, three hundred fifty-three".