1220620122234 has 24 divisors (see below), whose sum is σ = 2645822399220. Its totient is φ = 406697148288.

The previous prime is 1220620122229. The next prime is 1220620122263. The reversal of 1220620122234 is 4322210260221.

1220620122234 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 620 + 1 + 2 + 2 + 2 + 34 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1140079385025 + 80540737209 = 1067745^2 + 283797^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1220620122198 and 1220620122207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14642767 + ... + 14725890.

Almost surely, 2^{1220620122234} is an apocalyptic number.

1220620122234 is an abundant number, since it is smaller than the sum of its proper divisors (1425202276986).

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

1220620122234 is a wasteful number, since it uses less digits than its factorization.

1220620122234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29370974 (or 29370971 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1220620122234 its reverse (4322210260221), we get a palindrome (5542830382455).

The spelling of 1220620122234 in words is "one trillion, two hundred twenty billion, six hundred twenty million, one hundred twenty-two thousand, two hundred thirty-four".