1011221123101 has 8 divisors (see below), whose sum is σ = 1205928296064. Its totient is φ = 829075703280.

The previous prime is 1011221123089. The next prime is 1011221123113. The reversal of 1011221123101 is 1013211221101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1011221123089) and next prime (1011221123113).

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 1011221123101 - 2¹³ = 1011221114909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011221121101) 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, 3140438110 + ... + 3140438431.

It is an arithmetic number, because the mean of its divisors is an integer number (150741037008).

Almost surely, 2^{1011221123101} is an apocalyptic number.

It is an amenable number.

1011221123101 is a deficient number, since it is larger than the sum of its proper divisors (194707172963).

1011221123101 is an equidigital number, since it uses as much as digits as its factorization.

1011221123101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6280876571.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1011221123101 its reverse (1013211221101), we get a palindrome (2024432344202).

The spelling of 1011221123101 in words is "one trillion, eleven billion, two hundred twenty-one million, one hundred twenty-three thousand, one hundred one".