121000102201 has 4 divisors (see below), whose sum is σ = 132000111504. Its totient is φ = 110000092900.

The previous prime is 121000102199. The next prime is 121000102211. The reversal of 121000102201 is 102201000121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121000102201 - 2¹ = 121000102199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121000102211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5500004635 + ... + 5500004656.

It is an arithmetic number, because the mean of its divisors is an integer number (33000027876).

Almost surely, 2^121000102201 is an apocalyptic number.

121000102201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121000102201 is a deficient number, since it is larger than the sum of its proper divisors (11000009303).

121000102201 is a wasteful number, since it uses less digits than its factorization.

121000102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000009302.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121000102201 its reverse (102201000121), we get a palindrome (223201102322).

The spelling of 121000102201 in words is "one hundred twenty-one billion, one hundred two thousand, two hundred one".