212206621147 has 2 divisors, whose sum is σ = 212206621148. Its totient is φ = 212206621146.

The previous prime is 212206621117. The next prime is 212206621243. The reversal of 212206621147 is 741126602212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212206621147 - 2¹¹ = 212206619099 is a prime.

It is not a weakly prime, because it can be changed into another prime (212206621117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106103310573 + 106103310574.

It is an arithmetic number, because the mean of its divisors is an integer number (106103310574).

Almost surely, 2^212206621147 is an apocalyptic number.

212206621147 is a deficient number, since it is larger than the sum of its proper divisors (1).

212206621147 is an equidigital number, since it uses as much as digits as its factorization.

212206621147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 212206621147 in words is "two hundred twelve billion, two hundred six million, six hundred twenty-one thousand, one hundred forty-seven".