40015312212 has 48 divisors (see below), whose sum is σ = 93558413312. Its totient is φ = 13311423360.

The previous prime is 40015312199. The next prime is 40015312297. The reversal of 40015312212 is 21221351004.

It is a super-3 number, since 3×40015312212³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24061293 + ... + 24062955.

Almost surely, 2^40015312212 is an apocalyptic number.

It is an amenable number.

40015312212 is an abundant number, since it is smaller than the sum of its proper divisors (53543101100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40015312212 is a wasteful number, since it uses less digits than its factorization.

40015312212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4528 (or 4526 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 40015312212 its reverse (21221351004), we get a palindrome (61236663216).

The spelling of 40015312212 in words is "forty billion, fifteen million, three hundred twelve thousand, two hundred twelve".