101029701221 has 2 divisors, whose sum is σ = 101029701222. Its totient is φ = 101029701220.

The previous prime is 101029701211. The next prime is 101029701239. The reversal of 101029701221 is 122107920101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100520702500 + 508998721 = 317050^2 + 22561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101029701221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101029701211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50514850610 + 50514850611.

It is an arithmetic number, because the mean of its divisors is an integer number (50514850611).

Almost surely, 2^101029701221 is an apocalyptic number.

It is an amenable number.

101029701221 is a deficient number, since it is larger than the sum of its proper divisors (1).

101029701221 is an equidigital number, since it uses as much as digits as its factorization.

101029701221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

The spelling of 101029701221 in words is "one hundred one billion, twenty-nine million, seven hundred one thousand, two hundred twenty-one".