121021322033 has 4 divisors (see below), whose sum is σ = 121332431220. Its totient is φ = 120710212848.

The previous prime is 121021321987. The next prime is 121021322047. The reversal of 121021322033 is 330223120121.

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 43393889344 + 77627432689 = 208312^2 + 278617^2 .

It is a cyclic number.

It is not a de Polignac number, because 121021322033 - 2⁶ = 121021321969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121021321996 and 121021322014.

It is not an unprimeable number, because it can be changed into a prime (121021322533) 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, 155554010 + ... + 155554787.

It is an arithmetic number, because the mean of its divisors is an integer number (30333107805).

Almost surely, 2^121021322033 is an apocalyptic number.

It is an amenable number.

121021322033 is a deficient number, since it is larger than the sum of its proper divisors (311109187).

121021322033 is an equidigital number, since it uses as much as digits as its factorization.

121021322033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311109186.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121021322033 its reverse (330223120121), we get a palindrome (451244442154).

The spelling of 121021322033 in words is "one hundred twenty-one billion, twenty-one million, three hundred twenty-two thousand, thirty-three".