1020212211191 has 2 divisors, whose sum is σ = 1020212211192. Its totient is φ = 1020212211190.

The previous prime is 1020212211149. The next prime is 1020212211197. The reversal of 1020212211191 is 1911122120201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020212211191 - 2³⁰ = 1019138469367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020212211197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510106105595 + 510106105596.

It is an arithmetic number, because the mean of its divisors is an integer number (510106105596).

Almost surely, 2^{1020212211191} is an apocalyptic number.

1020212211191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020212211191 is an equidigital number, since it uses as much as digits as its factorization.

1020212211191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

Adding to 1020212211191 its reverse (1911122120201), we get a palindrome (2931334331392).

The spelling of 1020212211191 in words is "one trillion, twenty billion, two hundred twelve million, two hundred eleven thousand, one hundred ninety-one".