220122121100977 has 2 divisors, whose sum is σ = 220122121100978. Its totient is φ = 220122121100976.

The previous prime is 220122121100933. The next prime is 220122121101007. The reversal of 220122121100977 is 779001121221022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156656664257536 + 63465456843441 = 12516256^2 + 7966521^2 .

It is a cyclic number.

It is not a de Polignac number, because 220122121100977 - 2⁴³ = 211326028078769 is a prime.

It is not a weakly prime, because it can be changed into another prime (220122121109977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061060550488 + 110061060550489.

It is an arithmetic number, because the mean of its divisors is an integer number (110061060550489).

Almost surely, 2^{220122121100977} is an apocalyptic number.

It is an amenable number.

220122121100977 is a deficient number, since it is larger than the sum of its proper divisors (1).

220122121100977 is an equidigital number, since it uses as much as digits as its factorization.

220122121100977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 37.

Adding to 220122121100977 its reverse (779001121221022), we get a palindrome (999123242321999).

The spelling of 220122121100977 in words is "two hundred twenty trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred thousand, nine hundred seventy-seven".