40221204210 has 128 divisors (see below), whose sum is σ = 117071032320. Its totient is φ = 9745272000.

The previous prime is 40221204187. The next prime is 40221204223. The reversal of 40221204210 is 1240212204.

40221204210 is a `hidden beast` number, since 4 + 0 + 221 + 20 + 421 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9926685 + ... + 9930735.

It is an arithmetic number, because the mean of its divisors is an integer number (914617440).

Almost surely, 2^40221204210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40221204210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58535516160).

40221204210 is an abundant number, since it is smaller than the sum of its proper divisors (76849828110).

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

40221204210 is a wasteful number, since it uses less digits than its factorization.

40221204210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7421 (or 7415 counting only the distinct ones).

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

Adding to 40221204210 its reverse (1240212204), we get a palindrome (41461416414).

The spelling of 40221204210 in words is "forty billion, two hundred twenty-one million, two hundred four thousand, two hundred ten".