211212010210139 has 2 divisors, whose sum is σ = 211212010210140. Its totient is φ = 211212010210138.

The previous prime is 211212010210099. The next prime is 211212010210177. The reversal of 211212010210139 is 931012010212112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211212010210139 - 2²⁰ = 211212009161563 is a prime.

It is a super-2 number, since 2×211212010210139² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211212010210039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105606005105069 + 105606005105070.

It is an arithmetic number, because the mean of its divisors is an integer number (105606005105070).

Almost surely, 2^{211212010210139} is an apocalyptic number.

211212010210139 is a deficient number, since it is larger than the sum of its proper divisors (1).

211212010210139 is an equidigital number, since it uses as much as digits as its factorization.

211212010210139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 211212010210139 in words is "two hundred eleven trillion, two hundred twelve billion, ten million, two hundred ten thousand, one hundred thirty-nine".