1010101001121 has 24 divisors (see below), whose sum is σ = 1464607184040. Its totient is φ = 670829299200.

The previous prime is 1010101001083. The next prime is 1010101001137. The reversal of 1010101001121 is 1211001010101.

It can be written as a sum of positive squares in 4 ways, for example, as 42954635025 + 967146366096 = 207255^2 + 983436^2 .

It is not a de Polignac number, because 1010101001121 - 2²⁷ = 1009966783393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1010101001141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37901961 + ... + 37928601.

It is an arithmetic number, because the mean of its divisors is an integer number (61025299335).

Almost surely, 2^{1010101001121} is an apocalyptic number.

It is an amenable number.

1010101001121 is a deficient number, since it is larger than the sum of its proper divisors (454506182919).

1010101001121 is a wasteful number, since it uses less digits than its factorization.

1010101001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42577 (or 42574 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1010101001121 its reverse (1211001010101), we get a palindrome (2221102011222).

The spelling of 1010101001121 in words is "one trillion, ten billion, one hundred one million, one thousand, one hundred twenty-one".