121211433001 has 2 divisors, whose sum is σ = 121211433002. Its totient is φ = 121211433000.

The previous prime is 121211432999. The next prime is 121211433011. The reversal of 121211433001 is 100334112121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62838456976 + 58372976025 = 250676^2 + 241605^2 .

It is a cyclic number.

It is not a de Polignac number, because 121211433001 - 2¹ = 121211432999 is a prime.

It is a super-2 number, since 2×121211433001² (a number of 23 digits) contains 22 as substring.

Together with 121211432999, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121211433001.

It is not a weakly prime, because it can be changed into another prime (121211433011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605716500 + 60605716501.

It is an arithmetic number, because the mean of its divisors is an integer number (60605716501).

Almost surely, 2^121211433001 is an apocalyptic number.

It is an amenable number.

121211433001 is a deficient number, since it is larger than the sum of its proper divisors (1).

121211433001 is an equidigital number, since it uses as much as digits as its factorization.

121211433001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121211433001 its reverse (100334112121), we get a palindrome (221545545122).

The spelling of 121211433001 in words is "one hundred twenty-one billion, two hundred eleven million, four hundred thirty-three thousand, one".