121133210201 has 16 divisors (see below), whose sum is σ = 129045312000. Its totient is φ = 113309779968.

The previous prime is 121133210189. The next prime is 121133210213. The reversal of 121133210201 is 102012331121.

It is an interprime number because it is at equal distance from previous prime (121133210189) and next prime (121133210213).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121133210201 is a prime.

It is a super-2 number, since 2×121133210201² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121133210201.

It is not an unprimeable number, because it can be changed into a prime (121133216201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3123536 + ... + 3162078.

It is an arithmetic number, because the mean of its divisors is an integer number (8065332000).

Almost surely, 2^121133210201 is an apocalyptic number.

It is an amenable number.

121133210201 is a deficient number, since it is larger than the sum of its proper divisors (7912101799).

121133210201 is a wasteful number, since it uses less digits than its factorization.

121133210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39688.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121133210201 its reverse (102012331121), we get a palindrome (223145541322).

The spelling of 121133210201 in words is "one hundred twenty-one billion, one hundred thirty-three million, two hundred ten thousand, two hundred one".