1022201161643 has 2 divisors, whose sum is σ = 1022201161644. Its totient is φ = 1022201161642.

The previous prime is 1022201161601. The next prime is 1022201161697. The reversal of 1022201161643 is 3461611022201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1022201161643 - 2¹⁰ = 1022201160619 is a prime.

It is a super-2 number, since 2×1022201161643² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1022201166643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511100580821 + 511100580822.

It is an arithmetic number, because the mean of its divisors is an integer number (511100580822).

Almost surely, 2^{1022201161643} is an apocalyptic number.

1022201161643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022201161643 is an equidigital number, since it uses as much as digits as its factorization.

1022201161643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 1022201161643 its reverse (3461611022201), we get a palindrome (4483812183844).

The spelling of 1022201161643 in words is "one trillion, twenty-two billion, two hundred one million, one hundred sixty-one thousand, six hundred forty-three".