1211200420030 has 8 divisors (see below), whose sum is σ = 2180160756072. Its totient is φ = 484480168008.

The previous prime is 1211200420009. The next prime is 1211200420063. The reversal of 1211200420030 is 300240021121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1211200419986 and 1211200420013.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 60560020992 + ... + 60560021011.

It is an arithmetic number, because the mean of its divisors is an integer number (272520094509).

Almost surely, 2^{1211200420030} is an apocalyptic number.

1211200420030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211200420030 is a deficient number, since it is larger than the sum of its proper divisors (968960336042).

1211200420030 is a wasteful number, since it uses less digits than its factorization.

1211200420030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121120042010.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1211200420030 its reverse (300240021121), we get a palindrome (1511440441151).

The spelling of 1211200420030 in words is "one trillion, two hundred eleven billion, two hundred million, four hundred twenty thousand, thirty".