1020422111 has 2 divisors, whose sum is σ = 1020422112. Its totient is φ = 1020422110.

The previous prime is 1020422107. The next prime is 1020422131. The reversal of 1020422111 is 1112240201.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1112240201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020422111 - 2² = 1020422107 is a prime.

It is a super-2 number, since 2×1020422111² = 2082522569235392642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020422131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510211055 + 510211056.

It is an arithmetic number, because the mean of its divisors is an integer number (510211056).

Almost surely, 2^1020422111 is an apocalyptic number.

1020422111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020422111 is an equidigital number, since it uses as much as digits as its factorization.

1020422111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1020422111 is about 31944.0465658313. The cubic root of 1020422111 is about 1006.7615487491.

Adding to 1020422111 its reverse (1112240201), we get a palindrome (2132662312).

The spelling of 1020422111 in words is "one billion, twenty million, four hundred twenty-two thousand, one hundred eleven".