211450211400929 has 2 divisors, whose sum is σ = 211450211400930. Its totient is φ = 211450211400928.

The previous prime is 211450211400919. The next prime is 211450211400941. The reversal of 211450211400929 is 929004112054112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134336259483904 + 77113951917025 = 11590352^2 + 8781455^2 .

It is a cyclic number.

It is not a de Polignac number, because 211450211400929 - 2¹² = 211450211396833 is a prime.

It is a super-2 number, since 2×211450211400929² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211450211400919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105725105700464 + 105725105700465.

It is an arithmetic number, because the mean of its divisors is an integer number (105725105700465).

Almost surely, 2^{211450211400929} is an apocalyptic number.

It is an amenable number.

211450211400929 is a deficient number, since it is larger than the sum of its proper divisors (1).

211450211400929 is an equidigital number, since it uses as much as digits as its factorization.

211450211400929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 211450211400929 in words is "two hundred eleven trillion, four hundred fifty billion, two hundred eleven million, four hundred thousand, nine hundred twenty-nine".