40042203212220 has 96 divisors (see below), whose sum is σ = 122422840839936. Its totient is φ = 9698303078400.

The previous prime is 40042203212189. The next prime is 40042203212257. The reversal of 40042203212220 is 2221230224004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27084709 + ... + 28524828.

It is an arithmetic number, because the mean of its divisors is an integer number (1275237925416).

Almost surely, 2^{40042203212220} is an apocalyptic number.

It is an amenable number.

40042203212220 is an abundant number, since it is smaller than the sum of its proper divisors (82380637627716).

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

40042203212220 is a wasteful number, since it uses less digits than its factorization.

40042203212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55610651 (or 55610649 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 40042203212220 its reverse (2221230224004), we get a palindrome (42263433436224).

The spelling of 40042203212220 in words is "forty trillion, forty-two billion, two hundred three million, two hundred twelve thousand, two hundred twenty".