40202220220220 has 48 divisors (see below), whose sum is σ = 88870297944960. Its totient is φ = 15234142895424.

The previous prime is 40202220220199. The next prime is 40202220220229. The reversal of 40202220220220 is 2202202220204.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40202220220192 and 40202220220201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40202220220229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14053787 + ... + 16670733.

It is an arithmetic number, because the mean of its divisors is an integer number (1851464540520).

Almost surely, 2^{40202220220220} is an apocalyptic number.

It is an amenable number.

40202220220220 is an abundant number, since it is smaller than the sum of its proper divisors (48668077724740).

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

40202220220220 is a wasteful number, since it uses less digits than its factorization.

40202220220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657402 (or 2657400 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40202220220220 its reverse (2202202220204), we get a palindrome (42404422440424).

The spelling of 40202220220220 in words is "forty trillion, two hundred two billion, two hundred twenty million, two hundred twenty thousand, two hundred twenty".