211012111022087 has 2 divisors, whose sum is σ = 211012111022088. Its totient is φ = 211012111022086.

The previous prime is 211012111022047. The next prime is 211012111022107. The reversal of 211012111022087 is 780220111210112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211012111022087 is a prime.

It is a super-2 number, since 2×211012111022087² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211012111022047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105506055511043 + 105506055511044.

It is an arithmetic number, because the mean of its divisors is an integer number (105506055511044).

Almost surely, 2^{211012111022087} is an apocalyptic number.

211012111022087 is a deficient number, since it is larger than the sum of its proper divisors (1).

211012111022087 is an equidigital number, since it uses as much as digits as its factorization.

211012111022087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 29.

Adding to 211012111022087 its reverse (780220111210112), we get a palindrome (991232222232199).

The spelling of 211012111022087 in words is "two hundred eleven trillion, twelve billion, one hundred eleven million, twenty-two thousand, eighty-seven".