1235221152345 has 48 divisors (see below), whose sum is σ = 2267222285952. Its totient is φ = 619970173440.

The previous prime is 1235221152323. The next prime is 1235221152359. The reversal of 1235221152345 is 5432511225321.

1235221152345 is a `hidden beast` number, since 1 + 2 + 3 + 52 + 211 + 52 + 345 = 666.

It is not a de Polignac number, because 1235221152345 - 2¹¹ = 1235221150297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8056774 + ... + 8208656.

It is an arithmetic number, because the mean of its divisors is an integer number (47233797624).

Almost surely, 2^{1235221152345} is an apocalyptic number.

1235221152345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1235221152345 is a deficient number, since it is larger than the sum of its proper divisors (1032001133607).

1235221152345 is a wasteful number, since it uses less digits than its factorization.

1235221152345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162542 (or 162539 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 1235221152345 its reverse (5432511225321), we get a palindrome (6667732377666).

The spelling of 1235221152345 in words is "one trillion, two hundred thirty-five billion, two hundred twenty-one million, one hundred fifty-two thousand, three hundred forty-five".