211212004049 has 2 divisors, whose sum is σ = 211212004050. Its totient is φ = 211212004048.

The previous prime is 211212004019. The next prime is 211212004093. The reversal of 211212004049 is 940400212112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165856635025 + 45355369024 = 407255^2 + 212968^2 .

It is a cyclic number.

It is not a de Polignac number, because 211212004049 - 2²⁸ = 210943568593 is a prime.

It is a super-2 number, since 2×211212004049² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211212004019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105606002024 + 105606002025.

It is an arithmetic number, because the mean of its divisors is an integer number (105606002025).

Almost surely, 2^211212004049 is an apocalyptic number.

It is an amenable number.

211212004049 is a deficient number, since it is larger than the sum of its proper divisors (1).

211212004049 is an equidigital number, since it uses as much as digits as its factorization.

211212004049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 211212004049 in words is "two hundred eleven billion, two hundred twelve million, four thousand, forty-nine".