1227475620000 has 1920 divisors, whose sum is σ = 5474207692800. Its totient is φ = 264539520000.

The previous prime is 1227475619983. The next prime is 1227475620001. The reversal of 1227475620000 is 265747221.

It is a happy number.

1227475620000 is a `hidden beast` number, since 1 + 2 + 27 + 4 + 7 + 5 + 620 + 0 + 0 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1227475620001) by changing a digit.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 5817419895 + ... + 5817420105.

It is an arithmetic number, because the mean of its divisors is an integer number (2851149840).

Almost surely, 2^{1227475620000} is an apocalyptic number.

1227475620000 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 1227475620000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2737103846400).

1227475620000 is an abundant number, since it is smaller than the sum of its proper divisors (4246732072800).

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

1227475620000 is an frugal number, since it uses more digits than its factorization.

1227475620000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The spelling of 1227475620000 in words is "one trillion, two hundred twenty-seven billion, four hundred seventy-five million, six hundred twenty thousand".