1220010511 has 2 divisors, whose sum is σ = 1220010512. Its totient is φ = 1220010510.

The previous prime is 1220010497. The next prime is 1220010521. The reversal of 1220010511 is 1150100221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220010511 - 2²⁹ = 683139599 is a prime.

It is a super-2 number, since 2×1220010511² = 2976851293900962242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220010491 and 1220010500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220010521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610005255 + 610005256.

It is an arithmetic number, because the mean of its divisors is an integer number (610005256).

Almost surely, 2^1220010511 is an apocalyptic number.

1220010511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220010511 is an equidigital number, since it uses as much as digits as its factorization.

1220010511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1220010511 is about 34928.6488573492. The cubic root of 1220010511 is about 1068.5327988056.

Adding to 1220010511 its reverse (1150100221), we get a palindrome (2370110732).

The spelling of 1220010511 in words is "one billion, two hundred twenty million, ten thousand, five hundred eleven".