1011211201201 has 8 divisors (see below), whose sum is σ = 1022665024800. Its totient is φ = 999759420000.

The previous prime is 1011211201183. The next prime is 1011211201207. The reversal of 1011211201201 is 1021021121101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1011211201201 - 2³⁵ = 976851462833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011211201207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496410 + ... + 1506268.

It is an arithmetic number, because the mean of its divisors is an integer number (127833128100).

Almost surely, 2^{1011211201201} is an apocalyptic number.

It is an amenable number.

1011211201201 is a deficient number, since it is larger than the sum of its proper divisors (11453823599).

1011211201201 is a wasteful number, since it uses less digits than its factorization.

1011211201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021199.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1011211201201 its reverse (1021021121101), we get a palindrome (2032232322302).

The spelling of 1011211201201 in words is "one trillion, eleven billion, two hundred eleven million, two hundred one thousand, two hundred one".