1212020200005 has 16 divisors (see below), whose sum is σ = 2023546769280. Its totient is φ = 618305956928.

The previous prime is 1212020199989. The next prime is 1212020200049. The reversal of 1212020200005 is 5000020202121.

It is a cyclic number.

It is not a de Polignac number, because 1212020200005 - 2⁴ = 1212020199989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 1756550670 + ... + 1756551359.

It is an arithmetic number, because the mean of its divisors is an integer number (126471673080).

Almost surely, 2^{1212020200005} is an apocalyptic number.

1212020200005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1212020200005 is a deficient number, since it is larger than the sum of its proper divisors (811526569275).

1212020200005 is a wasteful number, since it uses less digits than its factorization.

1212020200005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513102060.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 1212020200005 its reverse (5000020202121), we get a palindrome (6212040402126).

The spelling of 1212020200005 in words is "one trillion, two hundred twelve billion, twenty million, two hundred thousand, five".