1205002355220 has 48 divisors (see below), whose sum is σ = 3748896217920. Its totient is φ = 321333961248.

The previous prime is 1205002355203. The next prime is 1205002355269. The reversal of 1205002355220 is 225532005021.

1205002355220 is a `hidden beast` number, since 1 + 20 + 50 + 0 + 23 + 552 + 20 = 666.

It is a super-2 number, since 2×1205002355220² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 1115742382 + ... + 1115743461.

It is an arithmetic number, because the mean of its divisors is an integer number (78102004540).

Almost surely, 2^{1205002355220} is an apocalyptic number.

1205002355220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1205002355220 is an abundant number, since it is smaller than the sum of its proper divisors (2543893862700).

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

1205002355220 is a wasteful number, since it uses less digits than its factorization.

1205002355220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231485861 (or 2231485853 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 1205002355220 in words is "one trillion, two hundred five billion, two million, three hundred fifty-five thousand, two hundred twenty".