121000211102201 has 4 divisors (see below), whose sum is σ = 122198232994404. Its totient is φ = 119802189210000.

The previous prime is 121000211102159. The next prime is 121000211102203. The reversal of 121000211102201 is 102201112000121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114342366223801 + 6657844878400 = 10693099^2 + 2580280^2 .

It is a cyclic number.

It is not a de Polignac number, because 121000211102201 - 2⁴⁶ = 50631466924537 is a prime.

It is a super-2 number, since 2×121000211102201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121000211102203) 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, 599010945950 + ... + 599010946151.

It is an arithmetic number, because the mean of its divisors is an integer number (30549558248601).

Almost surely, 2^{121000211102201} is an apocalyptic number.

It is an amenable number.

121000211102201 is a deficient number, since it is larger than the sum of its proper divisors (1198021892203).

121000211102201 is a wasteful number, since it uses less digits than its factorization.

121000211102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198021892202.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121000211102201 its reverse (102201112000121), we get a palindrome (223201323102322).

The spelling of 121000211102201 in words is "one hundred twenty-one trillion, two hundred eleven million, one hundred two thousand, two hundred one".