401212224709 has 2 divisors, whose sum is σ = 401212224710. Its totient is φ = 401212224708.

The previous prime is 401212224661. The next prime is 401212224727. The reversal of 401212224709 is 907422212104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313583200225 + 87629024484 = 559985^2 + 296022^2 .

It is a cyclic number.

It is not a de Polignac number, because 401212224709 - 2¹⁷ = 401212093637 is a prime.

It is a super-2 number, since 2×401212224709² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401212224799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200606112354 + 200606112355.

It is an arithmetic number, because the mean of its divisors is an integer number (200606112355).

Almost surely, 2^401212224709 is an apocalyptic number.

It is an amenable number.

401212224709 is a deficient number, since it is larger than the sum of its proper divisors (1).

401212224709 is an equidigital number, since it uses as much as digits as its factorization.

401212224709 is an evil number, because the sum of its binary digits is even.

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

The spelling of 401212224709 in words is "four hundred one billion, two hundred twelve million, two hundred twenty-four thousand, seven hundred nine".