40210120422 has 24 divisors (see below), whose sum is σ = 88550158320. Its totient is φ = 13183645680.

The previous prime is 40210120411. The next prime is 40210120427. The reversal of 40210120422 is 22402101204.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40210120395 and 40210120404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40210120427) 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, 18309522 + ... + 18311717.

It is an arithmetic number, because the mean of its divisors is an integer number (3689589930).

Almost surely, 2^40210120422 is an apocalyptic number.

40210120422 is an abundant number, since it is smaller than the sum of its proper divisors (48340037898).

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

40210120422 is a wasteful number, since it uses less digits than its factorization.

40210120422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36621308 (or 36621305 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 40210120422 its reverse (22402101204), we get a palindrome (62612221626).

It can be divided in two parts, 402101204 and 22, that multiplied together give a palindrome (8846226488).

The spelling of 40210120422 in words is "forty billion, two hundred ten million, one hundred twenty thousand, four hundred twenty-two".