100201121011501 has 2 divisors, whose sum is σ = 100201121011502. Its totient is φ = 100201121011500.

The previous prime is 100201121011471. The next prime is 100201121011507. The reversal of 100201121011501 is 105110121102001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81312961716900 + 18888159294601 = 9017370^2 + 4346051^2 .

It is a cyclic number.

It is not a de Polignac number, because 100201121011501 - 2⁷ = 100201121011373 is a prime.

It is a super-2 number, since 2×100201121011501² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100201121011507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50100560505750 + 50100560505751.

It is an arithmetic number, because the mean of its divisors is an integer number (50100560505751).

Almost surely, 2^{100201121011501} is an apocalyptic number.

It is an amenable number.

100201121011501 is a deficient number, since it is larger than the sum of its proper divisors (1).

100201121011501 is an equidigital number, since it uses as much as digits as its factorization.

100201121011501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 16.

Adding to 100201121011501 its reverse (105110121102001), we get a palindrome (205311242113502).

The spelling of 100201121011501 in words is "one hundred trillion, two hundred one billion, one hundred twenty-one million, eleven thousand, five hundred one".