40213554124212 has 36 divisors (see below), whose sum is σ = 116172489692896. Its totient is φ = 11489586892560.

The previous prime is 40213554124201. The next prime is 40213554124213. The reversal of 40213554124212 is 21242145531204.

40213554124212 is a `hidden beast` number, since 4 + 0 + 21 + 3 + 5 + 5 + 412 + 4 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40213554124213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79788797614 + ... + 79788798117.

Almost surely, 2^{40213554124212} is an apocalyptic number.

40213554124212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

40213554124212 is an abundant number, since it is smaller than the sum of its proper divisors (75958935568684).

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

40213554124212 is a wasteful number, since it uses less digits than its factorization.

40213554124212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159577595748 (or 159577595743 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 40213554124212 its reverse (21242145531204), we get a palindrome (61455699655416).

The spelling of 40213554124212 in words is "forty trillion, two hundred thirteen billion, five hundred fifty-four million, one hundred twenty-four thousand, two hundred twelve".