622121011 has 2 divisors, whose sum is σ = 622121012. Its totient is φ = 622121010.

The previous prime is 622120937. The next prime is 622121023. The reversal of 622121011 is 110121226.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 622121011 - 2¹³ = 622112819 is a prime.

It is not a weakly prime, because it can be changed into another prime (622121081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311060505 + 311060506.

It is an arithmetic number, because the mean of its divisors is an integer number (311060506).

Almost surely, 2^622121011 is an apocalyptic number.

622121011 is a deficient number, since it is larger than the sum of its proper divisors (1).

622121011 is an equidigital number, since it uses as much as digits as its factorization.

622121011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 622121011 is about 24942.3537582162. The cubic root of 622121011 is about 853.6731518927.

Adding to 622121011 its reverse (110121226), we get a palindrome (732242237).

The spelling of 622121011 in words is "six hundred twenty-two million, one hundred twenty-one thousand, eleven".