102100121121201 has 20 divisors (see below), whose sum is σ = 158812960866672. Its totient is φ = 58342926350856.

The previous prime is 102100121121157. The next prime is 102100121121221. The reversal of 102100121121201 is 102121121001201.

It is a happy number.

It is not a de Polignac number, because 102100121121201 - 2¹⁸ = 102100120859057 is a prime.

It is a super-3 number, since 3×102100121121201³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (102100121121221) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7087325931 + ... + 7087340336.

Almost surely, 2^{102100121121201} is an apocalyptic number.

It is an amenable number.

102100121121201 is a deficient number, since it is larger than the sum of its proper divisors (56712839745471).

102100121121201 is an frugal number, since it uses more digits than its factorization.

102100121121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14174666298 (or 14174666277 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102100121121201 its reverse (102121121001201), we get a palindrome (204221242122402).

The spelling of 102100121121201 in words is "one hundred two trillion, one hundred billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred one".