1022211823 has 2 divisors, whose sum is σ = 1022211824. Its totient is φ = 1022211822.

The previous prime is 1022211821. The next prime is 1022211829. The reversal of 1022211823 is 3281122201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1022211823 - 2¹ = 1022211821 is a prime.

It is a super-2 number, since 2×1022211823² = 2089834022161966658, which contains 22 as substring.

Together with 1022211821, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1022211794 and 1022211803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022211821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511105911 + 511105912.

It is an arithmetic number, because the mean of its divisors is an integer number (511105912).

Almost surely, 2^1022211823 is an apocalyptic number.

1022211823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022211823 is an equidigital number, since it uses as much as digits as its factorization.

1022211823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1022211823 is about 31972.0475259249. The cubic root of 1022211823 is about 1007.3497892542.

The spelling of 1022211823 in words is "one billion, twenty-two million, two hundred eleven thousand, eight hundred twenty-three".