121122220213133 has 4 divisors (see below), whose sum is σ = 121141841508828. Its totient is φ = 121102598917440.

The previous prime is 121122220213129. The next prime is 121122220213139. The reversal of 121122220213133 is 331312022221121.

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 41180417336809 + 79941802876324 = 6417197^2 + 8941018^2 .

It is a cyclic number.

It is not a de Polignac number, because 121122220213133 - 2² = 121122220213129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122220213139) 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, 9810638588 + ... + 9810650933.

It is an arithmetic number, because the mean of its divisors is an integer number (30285460377207).

Almost surely, 2^{121122220213133} is an apocalyptic number.

It is an amenable number.

121122220213133 is a deficient number, since it is larger than the sum of its proper divisors (19621295695).

121122220213133 is an equidigital number, since it uses as much as digits as its factorization.

121122220213133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19621295694.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 121122220213133 its reverse (331312022221121), we get a palindrome (452434242434254).

The spelling of 121122220213133 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred twenty million, two hundred thirteen thousand, one hundred thirty-three".