101020221221047 has 2 divisors, whose sum is σ = 101020221221048. Its totient is φ = 101020221221046.

The previous prime is 101020221221041. The next prime is 101020221221057. The reversal of 101020221221047 is 740122122020101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101020221221047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101020221221041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510110610523 + 50510110610524.

It is an arithmetic number, because the mean of its divisors is an integer number (50510110610524).

Almost surely, 2^{101020221221047} is an apocalyptic number.

101020221221047 is a deficient number, since it is larger than the sum of its proper divisors (1).

101020221221047 is an equidigital number, since it uses as much as digits as its factorization.

101020221221047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 101020221221047 its reverse (740122122020101), we get a palindrome (841142343241148).

The spelling of 101020221221047 in words is "one hundred one trillion, twenty billion, two hundred twenty-one million, two hundred twenty-one thousand, forty-seven".