1022155213213 has 2 divisors, whose sum is σ = 1022155213214. Its totient is φ = 1022155213212.

The previous prime is 1022155213117. The next prime is 1022155213217. The reversal of 1022155213213 is 3123125512201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 675754693849 + 346400519364 = 822043^2 + 588558^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022155213213 - 2¹³ = 1022155205021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022155213217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511077606606 + 511077606607.

It is an arithmetic number, because the mean of its divisors is an integer number (511077606607).

Almost surely, 2^{1022155213213} is an apocalyptic number.

It is an amenable number.

1022155213213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022155213213 is an equidigital number, since it uses as much as digits as its factorization.

1022155213213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 1022155213213 in words is "one trillion, twenty-two billion, one hundred fifty-five million, two hundred thirteen thousand, two hundred thirteen".