3405216111 has 32 divisors (see below), whose sum is σ = 5163595776. Its totient is φ = 1977360000.

The previous prime is 3405216071. The next prime is 3405216121. The reversal of 3405216111 is 1116125043.

It is a happy number.

It is not a de Polignac number, because 3405216111 - 2¹³ = 3405207919 is a prime.

It is a super-2 number, since 2×3405216111² = 23190993525227928642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3405216121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86845 + ... + 119801.

It is an arithmetic number, because the mean of its divisors is an integer number (161362368).

Almost surely, 2^3405216111 is an apocalyptic number.

3405216111 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3405216111 is a deficient number, since it is larger than the sum of its proper divisors (1758379665).

3405216111 is a wasteful number, since it uses less digits than its factorization.

3405216111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33103.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 3405216111 is about 58354.2295896364. The cubic root of 3405216111 is about 1504.4631678064.

The spelling of 3405216111 in words is "three billion, four hundred five million, two hundred sixteen thousand, one hundred eleven".