20220220001205 has 144 divisors (see below), whose sum is σ = 42446081259504. Its totient is φ = 8870499993600.

The previous prime is 20220220001147. The next prime is 20220220001249. The reversal of 20220220001205 is 50210002202202.

20220220001205 is a `hidden beast` number, since 20 + 220 + 220 + 0 + 0 + 1 + 205 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1011792562641 + 19208427438564 = 1005879^2 + 4382742^2 .

It is not a de Polignac number, because 20220220001205 - 2¹³ = 20220219993013 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4258155 + ... + 7653255.

It is an arithmetic number, because the mean of its divisors is an integer number (294764453191).

Almost surely, 2^{20220220001205} is an apocalyptic number.

It is an amenable number.

20220220001205 is an abundant number, since it is smaller than the sum of its proper divisors (22225861258299).

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

20220220001205 is a wasteful number, since it uses less digits than its factorization.

20220220001205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395236 (or 3395226 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 20220220001205 its reverse (50210002202202), we get a palindrome (70430222203407).

The spelling of 20220220001205 in words is "twenty trillion, two hundred twenty billion, two hundred twenty million, one thousand, two hundred five".