1011211101201 has 96 divisors (see below), whose sum is σ = 1702170640512. Its totient is φ = 530414438400.

The previous prime is 1011211101139. The next prime is 1011211101217. The reversal of 1011211101201 is 1021011121101.

It is not a de Polignac number, because 1011211101201 - 2⁷ = 1011211101073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011211101281) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16880835 + ... + 16940631.

It is an arithmetic number, because the mean of its divisors is an integer number (17730944172).

Almost surely, 2^{1011211101201} is an apocalyptic number.

It is an amenable number.

1011211101201 is a deficient number, since it is larger than the sum of its proper divisors (690959539311).

1011211101201 is a wasteful number, since it uses less digits than its factorization.

1011211101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59999 (or 59992 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1011211101201 its reverse (1021011121101), we get a palindrome (2032222222302).

The spelling of 1011211101201 in words is "one trillion, eleven billion, two hundred eleven million, one hundred one thousand, two hundred one".