10001021251201 has 2 divisors, whose sum is σ = 10001021251202. Its totient is φ = 10001021251200.

The previous prime is 10001021251171. The next prime is 10001021251213. The reversal of 10001021251201 is 10215212010001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8745386707600 + 1255634543601 = 2957260^2 + 1120551^2 .

It is a cyclic number.

It is not a de Polignac number, because 10001021251201 - 2¹³ = 10001021243009 is a prime.

It is not a weakly prime, because it can be changed into another prime (10001021551201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000510625600 + 5000510625601.

It is an arithmetic number, because the mean of its divisors is an integer number (5000510625601).

Almost surely, 2^{10001021251201} is an apocalyptic number.

It is an amenable number.

10001021251201 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001021251201 is an equidigital number, since it uses as much as digits as its factorization.

10001021251201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 10001021251201 its reverse (10215212010001), we get a palindrome (20216233261202).

The spelling of 10001021251201 in words is "ten trillion, one billion, twenty-one million, two hundred fifty-one thousand, two hundred one".