40030212021 has 8 divisors (see below), whose sum is σ = 53387355840. Its totient is φ = 26679938112.

The previous prime is 40030211987. The next prime is 40030212029. The reversal of 40030212021 is 12021203004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40030212021 - 2¹⁷ = 40030080949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40030212029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1703865 + ... + 1727198.

It is an arithmetic number, because the mean of its divisors is an integer number (6673419480).

Almost surely, 2^40030212021 is an apocalyptic number.

It is an amenable number.

40030212021 is a deficient number, since it is larger than the sum of its proper divisors (13357143819).

40030212021 is a wasteful number, since it uses less digits than its factorization.

40030212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3434955.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 40030212021 its reverse (12021203004), we get a palindrome (52051415025).

The spelling of 40030212021 in words is "forty billion, thirty million, two hundred twelve thousand, twenty-one".