40121113420229 has 2 divisors, whose sum is σ = 40121113420230. Its totient is φ = 40121113420228.

The previous prime is 40121113420217. The next prime is 40121113420273. The reversal of 40121113420229 is 92202431112104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26087271304900 + 14033842115329 = 5107570^2 + 3746177^2 .

It is a cyclic number.

It is not a de Polignac number, because 40121113420229 - 2¹² = 40121113416133 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40121113420195 and 40121113420204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40121113420429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20060556710114 + 20060556710115.

It is an arithmetic number, because the mean of its divisors is an integer number (20060556710115).

Almost surely, 2^{40121113420229} is an apocalyptic number.

It is an amenable number.

40121113420229 is a deficient number, since it is larger than the sum of its proper divisors (1).

40121113420229 is an equidigital number, since it uses as much as digits as its factorization.

40121113420229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 40121113420229 in words is "forty trillion, one hundred twenty-one billion, one hundred thirteen million, four hundred twenty thousand, two hundred twenty-nine".