211122020121091 has 2 divisors, whose sum is σ = 211122020121092. Its totient is φ = 211122020121090.

The previous prime is 211122020121073. The next prime is 211122020121109. The reversal of 211122020121091 is 190121020221112.

Together with next prime (211122020121109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (211122020121073) and next prime (211122020121109).

It is a cyclic number.

It is not a de Polignac number, because 211122020121091 - 2⁹ = 211122020120579 is a prime.

It is not a weakly prime, because it can be changed into another prime (211122020521091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105561010060545 + 105561010060546.

It is an arithmetic number, because the mean of its divisors is an integer number (105561010060546).

Almost surely, 2^{211122020121091} is an apocalyptic number.

211122020121091 is a deficient number, since it is larger than the sum of its proper divisors (1).

211122020121091 is an equidigital number, since it uses as much as digits as its factorization.

211122020121091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 211122020121091 in words is "two hundred eleven trillion, one hundred twenty-two billion, twenty million, one hundred twenty-one thousand, ninety-one".