220021002201061 has 2 divisors, whose sum is σ = 220021002201062. Its totient is φ = 220021002201060.

The previous prime is 220021002200977. The next prime is 220021002201097. The reversal of 220021002201061 is 160102200120022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211188033936100 + 8832968264961 = 14532310^2 + 2972031^2 .

It is a cyclic number.

It is not a de Polignac number, because 220021002201061 - 2³⁷ = 219883563247589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220021002205061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110010501100530 + 110010501100531.

It is an arithmetic number, because the mean of its divisors is an integer number (110010501100531).

Almost surely, 2^{220021002201061} is an apocalyptic number.

It is an amenable number.

220021002201061 is a deficient number, since it is larger than the sum of its proper divisors (1).

220021002201061 is an equidigital number, since it uses as much as digits as its factorization.

220021002201061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 220021002201061 its reverse (160102200120022), we get a palindrome (380123202321083).

The spelling of 220021002201061 in words is "two hundred twenty trillion, twenty-one billion, two million, two hundred one thousand, sixty-one".