40202220000020 has 72 divisors (see below), whose sum is σ = 93648138890040. Its totient is φ = 14481850306560.

The previous prime is 40202219999969. The next prime is 40202220000071. The reversal of 40202220000020 is 2000002220204.

It is an interprime number because it is at equal distance from previous prime (40202219999969) and next prime (40202220000071).

It can be written as a sum of positive squares in 12 ways, for example, as 40111626223876 + 90593776144 = 6333374^2 + 300988^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144912005 + ... + 145189164.

It is an arithmetic number, because the mean of its divisors is an integer number (1300668595695).

Almost surely, 2^{40202220000020} is an apocalyptic number.

It is an amenable number.

40202220000020 is an abundant number, since it is smaller than the sum of its proper divisors (53445918890020).

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

40202220000020 is a wasteful number, since it uses less digits than its factorization.

40202220000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290101245 (or 290101230 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 40202220000020 its reverse (2000002220204), we get a palindrome (42202222220224).

The spelling of 40202220000020 in words is "forty trillion, two hundred two billion, two hundred twenty million, twenty", and thus it is an aban number.