1000222031101 has 2 divisors, whose sum is σ = 1000222031102. Its totient is φ = 1000222031100.

The previous prime is 1000222031099. The next prime is 1000222031129. The reversal of 1000222031101 is 1011302220001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 946038296025 + 54183735076 = 972645^2 + 232774^2 .

It is an emirp because it is prime and its reverse (1011302220001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000222031101 - 2¹ = 1000222031099 is a prime.

It is a super-2 number, since 2×1000222031101² (a number of 25 digits) contains 22 as substring.

Together with 1000222031099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000222031801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500111015550 + 500111015551.

It is an arithmetic number, because the mean of its divisors is an integer number (500111015551).

Almost surely, 2^{1000222031101} is an apocalyptic number.

It is an amenable number.

1000222031101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000222031101 is an equidigital number, since it uses as much as digits as its factorization.

1000222031101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1000222031101 its reverse (1011302220001), we get a palindrome (2011524251102).

The spelling of 1000222031101 in words is "one trillion, two hundred twenty-two million, thirty-one thousand, one hundred one".