1227150450440 has 32 divisors (see below), whose sum is σ = 2766758143680. Its totient is φ = 489852245952.

The previous prime is 1227150450433. The next prime is 1227150450457. The reversal of 1227150450440 is 440540517221.

It is a self number, because there is not a number n which added to its sum of digits gives 1227150450440.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31478222 + ... + 31517181.

It is an arithmetic number, because the mean of its divisors is an integer number (86461191990).

Almost surely, 2^{1227150450440} is an apocalyptic number.

1227150450440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1227150450440 is an abundant number, since it is smaller than the sum of its proper divisors (1539607693240).

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

1227150450440 is a wasteful number, since it uses less digits than its factorization.

1227150450440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62995901 (or 62995897 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

Adding to 1227150450440 its reverse (440540517221), we get a palindrome (1667690967661).

The spelling of 1227150450440 in words is "one trillion, two hundred twenty-seven billion, one hundred fifty million, four hundred fifty thousand, four hundred forty".