1011211200321 has 16 divisors (see below), whose sum is σ = 1542510175104. Its totient is φ = 577228627584.

The previous prime is 1011211200283. The next prime is 1011211200323. The reversal of 1011211200321 is 1230021121101.

1011211200321 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1011211200321 - 2⁹ = 1011211199809 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011211200321.

It is not an unprimeable number, because it can be changed into a prime (1011211200323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25243846 + ... + 25283871.

It is an arithmetic number, because the mean of its divisors is an integer number (96406885944).

Almost surely, 2^{1011211200321} is an apocalyptic number.

It is an amenable number.

1011211200321 is a deficient number, since it is larger than the sum of its proper divisors (531298974783).

1011211200321 is an equidigital number, since it uses as much as digits as its factorization.

1011211200321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50528680.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1011211200321 its reverse (1230021121101), we get a palindrome (2241232321422).

The spelling of 1011211200321 in words is "one trillion, eleven billion, two hundred eleven million, two hundred thousand, three hundred twenty-one".