40221251000 has 64 divisors (see below), whose sum is σ = 107563135680. Its totient is φ = 13790140800.

The previous prime is 40221250999. The next prime is 40221251011. The reversal of 40221251000 is 15212204.

It is a self number, because there is not a number n which added to its sum of digits gives 40221251000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2865947 + ... + 2879946.

It is an arithmetic number, because the mean of its divisors is an integer number (1680673995).

Almost surely, 2^40221251000 is an apocalyptic number.

40221251000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40221251000 is an abundant number, since it is smaller than the sum of its proper divisors (67341884680).

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

40221251000 is a wasteful number, since it uses less digits than its factorization.

40221251000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5745921 (or 5745907 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 40221251000 its reverse (15212204), we get a palindrome (40236463204).

The spelling of 40221251000 in words is "forty billion, two hundred twenty-one million, two hundred fifty-one thousand".