1220750975376 has 225 divisors, whose sum is σ = 3615518347441. Its totient is φ = 397649291904.

The previous prime is 1220750975341. The next prime is 1220750975393. The reversal of 1220750975376 is 6735790570221.

The square root of 1220750975376 is 1104876.

It is a perfect power (a square), and thus also a powerful number.

1220750975376 is a `hidden beast` number, since 12 + 2 + 0 + 7 + 5 + 0 + 97 + 537 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 284067680400 + 936683294976 = 532980^2 + 967824^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1869449866 + ... + 1869450518.

Almost surely, 2^{1220750975376} is an apocalyptic number.

1220750975376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1220750975376 is the 1104876-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220750975376

1220750975376 is an abundant number, since it is smaller than the sum of its proper divisors (2394767372065).

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

1220750975376 is an frugal number, since it uses more digits than its factorization.

1220750975376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 5556600, while the sum is 54.

The spelling of 1220750975376 in words is "one trillion, two hundred twenty billion, seven hundred fifty million, nine hundred seventy-five thousand, three hundred seventy-six".