1220538313695 has 32 divisors (see below), whose sum is σ = 1977993126144. Its totient is φ = 642622400000.

The previous prime is 1220538313651. The next prime is 1220538313733. The reversal of 1220538313695 is 5963138350221.

It is not a de Polignac number, because 1220538313695 - 2⁷ = 1220538313567 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1008981 + ... + 1859870.

It is an arithmetic number, because the mean of its divisors is an integer number (61812285192).

Almost surely, 2^{1220538313695} is an apocalyptic number.

1220538313695 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1220538313695 is a deficient number, since it is larger than the sum of its proper divisors (757454812449).

1220538313695 is a wasteful number, since it uses less digits than its factorization.

1220538313695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869223.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 1220538313695 in words is "one trillion, two hundred twenty billion, five hundred thirty-eight million, three hundred thirteen thousand, six hundred ninety-five".