100200101221949 has 2 divisors, whose sum is σ = 100200101221950. Its totient is φ = 100200101221948.

The previous prime is 100200101221919. The next prime is 100200101222041. The reversal of 100200101221949 is 949122101002001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53346692269924 + 46853408952025 = 7303882^2 + 6844955^2 .

It is a cyclic number.

It is not a de Polignac number, because 100200101221949 - 2¹⁶ = 100200101156413 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100200101221919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50100050610974 + 50100050610975.

It is an arithmetic number, because the mean of its divisors is an integer number (50100050610975).

Almost surely, 2^{100200101221949} is an apocalyptic number.

It is an amenable number.

100200101221949 is a deficient number, since it is larger than the sum of its proper divisors (1).

100200101221949 is an equidigital number, since it uses as much as digits as its factorization.

100200101221949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 100200101221949 in words is "one hundred trillion, two hundred billion, one hundred one million, two hundred twenty-one thousand, nine hundred forty-nine".