1027221955200 has 384 divisors, whose sum is σ = 4296399120000. Its totient is φ = 234793451520.

The previous prime is 1027221955171. The next prime is 1027221955213. The reversal of 1027221955200 is 25591227201.

1027221955200 is a `hidden beast` number, since 1 + 0 + 27 + 2 + 21 + 95 + 520 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244425 + ... + 1454024.

It is an arithmetic number, because the mean of its divisors is an integer number (11188539375).

Almost surely, 2^{1027221955200} is an apocalyptic number.

1027221955200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1027221955200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2148199560000).

1027221955200 is an abundant number, since it is smaller than the sum of its proper divisors (3269177164800).

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

1027221955200 is a wasteful number, since it uses less digits than its factorization.

1027221955200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698489 (or 1698466 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 1027221955200 in words is "one trillion, twenty-seven billion, two hundred twenty-one million, nine hundred fifty-five thousand, two hundred".