40220211212 has 12 divisors (see below), whose sum is σ = 70387016616. Its totient is φ = 20109635040.

The previous prime is 40220211211. The next prime is 40220211217. The reversal of 40220211212 is 21211202204.

40220211212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40220211211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134912 + ... + 314072.

It is an arithmetic number, because the mean of its divisors is an integer number (5865584718).

Almost surely, 2^40220211212 is an apocalyptic number.

It is an amenable number.

40220211212 is a deficient number, since it is larger than the sum of its proper divisors (30166805404).

40220211212 is a wasteful number, since it uses less digits than its factorization.

40220211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235288 (or 235286 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 40220211212 its reverse (21211202204), we get a palindrome (61431413416).

The spelling of 40220211212 in words is "forty billion, two hundred twenty million, two hundred eleven thousand, two hundred twelve".