212020083091 has 2 divisors, whose sum is σ = 212020083092. Its totient is φ = 212020083090.

The previous prime is 212020083061. The next prime is 212020083097. The reversal of 212020083091 is 190380020212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212020083091 - 2⁹ = 212020082579 is a prime.

It is a super-2 number, since 2×212020083091² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212020083097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010041545 + 106010041546.

It is an arithmetic number, because the mean of its divisors is an integer number (106010041546).

Almost surely, 2^212020083091 is an apocalyptic number.

212020083091 is a deficient number, since it is larger than the sum of its proper divisors (1).

212020083091 is an equidigital number, since it uses as much as digits as its factorization.

212020083091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 212020083091 in words is "two hundred twelve billion, twenty million, eighty-three thousand, ninety-one".