1011221011101 has 16 divisors (see below), whose sum is σ = 1622008640000. Its totient is φ = 547427915568.

The previous prime is 1011221011081. The next prime is 1011221011109. The reversal of 1011221011101 is 1011101221101.

It is not a de Polignac number, because 1011221011101 - 2¹⁰ = 1011221010077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011221011109) 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, 1267193851 + ... + 1267194648.

It is an arithmetic number, because the mean of its divisors is an integer number (101375540000).

Almost surely, 2^{1011221011101} is an apocalyptic number.

It is an amenable number.

1011221011101 is a deficient number, since it is larger than the sum of its proper divisors (610787628899).

1011221011101 is a wasteful number, since it uses less digits than its factorization.

1011221011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2534388528.

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

Adding to 1011221011101 its reverse (1011101221101), we get a palindrome (2022322232202).

The spelling of 1011221011101 in words is "one trillion, eleven billion, two hundred twenty-one million, eleven thousand, one hundred one".