211111201051 has 2 divisors, whose sum is σ = 211111201052. Its totient is φ = 211111201050.

The previous prime is 211111201043. The next prime is 211111201061. The reversal of 211111201051 is 150102111112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211111201051 - 2³ = 211111201043 is a prime.

It is not a weakly prime, because it can be changed into another prime (211111201001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105555600525 + 105555600526.

It is an arithmetic number, because the mean of its divisors is an integer number (105555600526).

Almost surely, 2^211111201051 is an apocalyptic number.

211111201051 is a deficient number, since it is larger than the sum of its proper divisors (1).

211111201051 is an equidigital number, since it uses as much as digits as its factorization.

211111201051 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 16.

Adding to 211111201051 its reverse (150102111112), we get a palindrome (361213312163).

The spelling of 211111201051 in words is "two hundred eleven billion, one hundred eleven million, two hundred one thousand, fifty-one".