1111121011201 has 8 divisors (see below), whose sum is σ = 1120932260840. Its totient is φ = 1101344370048.

The previous prime is 1111121011159. The next prime is 1111121011223. The reversal of 1111121011201 is 1021101211111.

It can be written as a sum of positive squares in 4 ways, for example, as 648992971201 + 462128040000 = 805601^2 + 679800^2 .

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 1111121011201 - 2³¹ = 1108973527553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111121015201) 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, 8587626 + ... + 8716051.

It is an arithmetic number, because the mean of its divisors is an integer number (140116532605).

Almost surely, 2^{1111121011201} is an apocalyptic number.

It is an amenable number.

1111121011201 is a deficient number, since it is larger than the sum of its proper divisors (9811249639).

1111121011201 is a wasteful number, since it uses less digits than its factorization.

1111121011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17304243.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1111121011201 its reverse (1021101211111), we get a palindrome (2132222222312).

The spelling of 1111121011201 in words is "one trillion, one hundred eleven billion, one hundred twenty-one million, eleven thousand, two hundred one".