40211211120021 has 6 divisors (see below), whose sum is σ = 58082860506710. Its totient is φ = 26807474080008.

The previous prime is 40211211120019. The next prime is 40211211120049. The reversal of 40211211120021 is 12002111211204.

40211211120021 is a `hidden beast` number, since 40 + 211 + 211 + 1 + 200 + 2 + 1 = 666.

40211211120021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 37980411980625 + 2230799139396 = 6162825^2 + 1493586^2 .

It is not a de Polignac number, because 40211211120021 - 2¹ = 40211211120019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40211211119976 and 40211211120003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40211211520021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2233956173326 + ... + 2233956173343.

Almost surely, 2^{40211211120021} is an apocalyptic number.

It is an amenable number.

40211211120021 is a deficient number, since it is larger than the sum of its proper divisors (17871649386689).

40211211120021 is a wasteful number, since it uses less digits than its factorization.

40211211120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4467912346675 (or 4467912346672 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 40211211120021 its reverse (12002111211204), we get a palindrome (52213322331225).

The spelling of 40211211120021 in words is "forty trillion, two hundred eleven billion, two hundred eleven million, one hundred twenty thousand, twenty-one".