1220252413405 has 16 divisors (see below), whose sum is σ = 1509520541760. Its totient is φ = 946510144128.

The previous prime is 1220252413397. The next prime is 1220252413433. The reversal of 1220252413405 is 5043142520221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1220252413405 - 2³ = 1220252413397 is a prime.

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, 28310307 + ... + 28353376.

It is an arithmetic number, because the mean of its divisors is an integer number (94345033860).

Almost surely, 2^{1220252413405} is an apocalyptic number.

It is an amenable number.

1220252413405 is a deficient number, since it is larger than the sum of its proper divisors (289268128355).

1220252413405 is an equidigital number, since it uses as much as digits as its factorization.

1220252413405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56663820.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 1220252413405 its reverse (5043142520221), we get a palindrome (6263394933626).

The spelling of 1220252413405 in words is "one trillion, two hundred twenty billion, two hundred fifty-two million, four hundred thirteen thousand, four hundred five".