1205101155020 has 48 divisors (see below), whose sum is σ = 3044466082560. Its totient is φ = 391431351744.

The previous prime is 1205101155007. The next prime is 1205101155053. The reversal of 1205101155020 is 205511015021.

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, 226520114 + ... + 226525433.

It is an arithmetic number, because the mean of its divisors is an integer number (63426376720).

Almost surely, 2^{1205101155020} is an apocalyptic number.

1205101155020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1205101155020 is an abundant number, since it is smaller than the sum of its proper divisors (1839364927540).

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

1205101155020 is a wasteful number, since it uses less digits than its factorization.

1205101155020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453045582 (or 453045580 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 23.

The spelling of 1205101155020 in words is "one trillion, two hundred five billion, one hundred one million, one hundred fifty-five thousand, twenty".