1133212022221 has 2 divisors, whose sum is σ = 1133212022222. Its totient is φ = 1133212022220.

The previous prime is 1133212022219. The next prime is 1133212022227. The reversal of 1133212022221 is 1222202123311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 893004210121 + 240207812100 = 944989^2 + 490110^2 .

It is a cyclic number.

It is not a de Polignac number, because 1133212022221 - 2¹ = 1133212022219 is a prime.

Together with 1133212022219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1133212022192 and 1133212022201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1133212022227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566606011110 + 566606011111.

It is an arithmetic number, because the mean of its divisors is an integer number (566606011111).

Almost surely, 2^{1133212022221} is an apocalyptic number.

It is an amenable number.

1133212022221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133212022221 is an equidigital number, since it uses as much as digits as its factorization.

1133212022221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1133212022221 its reverse (1222202123311), we get a palindrome (2355414145532).

The spelling of 1133212022221 in words is "one trillion, one hundred thirty-three billion, two hundred twelve million, twenty-two thousand, two hundred twenty-one".