1220355234315 has 24 divisors (see below), whose sum is σ = 2417465607648. Its totient is φ = 557876678400.

The previous prime is 1220355234299. The next prime is 1220355234349. The reversal of 1220355234315 is 5134325530221.

1220355234315 is a `hidden beast` number, since 1 + 220 + 35 + 52 + 343 + 15 = 666.

It is not a de Polignac number, because 1220355234315 - 2⁴ = 1220355234299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220355234315.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1937071486 + ... + 1937072115.

It is an arithmetic number, because the mean of its divisors is an integer number (100727733652).

Almost surely, 2^{1220355234315} is an apocalyptic number.

1220355234315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1220355234315 is a deficient number, since it is larger than the sum of its proper divisors (1197110373333).

1220355234315 is a wasteful number, since it uses less digits than its factorization.

1220355234315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3874143619 (or 3874143616 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 1220355234315 in words is "one trillion, two hundred twenty billion, three hundred fifty-five million, two hundred thirty-four thousand, three hundred fifteen".