212115511411 has 2 divisors, whose sum is σ = 212115511412. Its totient is φ = 212115511410.

The previous prime is 212115511373. The next prime is 212115511427. The reversal of 212115511411 is 114115511212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212115511411 - 2⁹ = 212115510899 is a prime.

It is a super-3 number, since 3×212115511411³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (212115511451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106057755705 + 106057755706.

It is an arithmetic number, because the mean of its divisors is an integer number (106057755706).

Almost surely, 2^212115511411 is an apocalyptic number.

212115511411 is a deficient number, since it is larger than the sum of its proper divisors (1).

212115511411 is an equidigital number, since it uses as much as digits as its factorization.

212115511411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 400, while the sum is 25.

The spelling of 212115511411 in words is "two hundred twelve billion, one hundred fifteen million, five hundred eleven thousand, four hundred eleven".