33122140421 has 2 divisors, whose sum is σ = 33122140422. Its totient is φ = 33122140420.

The previous prime is 33122140411. The next prime is 33122140427. The reversal of 33122140421 is 12404122133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29933844196 + 3188296225 = 173014^2 + 56465^2 .

It is a cyclic number.

It is not a de Polignac number, because 33122140421 - 2¹⁴ = 33122124037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33122140427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16561070210 + 16561070211.

It is an arithmetic number, because the mean of its divisors is an integer number (16561070211).

Almost surely, 2^33122140421 is an apocalyptic number.

It is an amenable number.

33122140421 is a deficient number, since it is larger than the sum of its proper divisors (1).

33122140421 is an equidigital number, since it uses as much as digits as its factorization.

33122140421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 33122140421 its reverse (12404122133), we get a palindrome (45526262554).

The spelling of 33122140421 in words is "thirty-three billion, one hundred twenty-two million, one hundred forty thousand, four hundred twenty-one".