220100121071 has 2 divisors, whose sum is σ = 220100121072. Its totient is φ = 220100121070.

The previous prime is 220100121029. The next prime is 220100121079. The reversal of 220100121071 is 170121001022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220100121071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220100121079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110050060535 + 110050060536.

It is an arithmetic number, because the mean of its divisors is an integer number (110050060536).

Almost surely, 2^220100121071 is an apocalyptic number.

220100121071 is a deficient number, since it is larger than the sum of its proper divisors (1).

220100121071 is an equidigital number, since it uses as much as digits as its factorization.

220100121071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 220100121071 its reverse (170121001022), we get a palindrome (390221122093).

The spelling of 220100121071 in words is "two hundred twenty billion, one hundred million, one hundred twenty-one thousand, seventy-one".