121021211033 has 2 divisors, whose sum is σ = 121021211034. Its totient is φ = 121021211032.

The previous prime is 121021210979. The next prime is 121021211093. The reversal of 121021211033 is 330112120121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75082576144 + 45938634889 = 274012^2 + 214333^2 .

It is a cyclic number.

It is not a de Polignac number, because 121021211033 - 2¹⁸ = 121020948889 is a prime.

It is a super-2 number, since 2×121021211033² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121021211093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510605516 + 60510605517.

It is an arithmetic number, because the mean of its divisors is an integer number (60510605517).

Almost surely, 2^121021211033 is an apocalyptic number.

It is an amenable number.

121021211033 is a deficient number, since it is larger than the sum of its proper divisors (1).

121021211033 is an equidigital number, since it uses as much as digits as its factorization.

121021211033 is an evil number, because the sum of its binary digits is even.

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

Adding to 121021211033 its reverse (330112120121), we get a palindrome (451133331154).

The spelling of 121021211033 in words is "one hundred twenty-one billion, twenty-one million, two hundred eleven thousand, thirty-three".