1121220010001 has 48 divisors (see below), whose sum is σ = 1452600382464. Its totient is φ = 845778428352.

The previous prime is 1121220009983. The next prime is 1121220010003. The reversal of 1121220010001 is 1000100221211.

It is not a de Polignac number, because 1121220010001 - 2¹⁴ = 1121219993617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121220010003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8286050 + ... + 8420276.

It is an arithmetic number, because the mean of its divisors is an integer number (30262507968).

Almost surely, 2^{1121220010001} is an apocalyptic number.

It is an amenable number.

1121220010001 is a deficient number, since it is larger than the sum of its proper divisors (331380372463).

1121220010001 is a wasteful number, since it uses less digits than its factorization.

1121220010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134590 (or 134577 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1121220010001 its reverse (1000100221211), we get a palindrome (2121320231212).

The spelling of 1121220010001 in words is "one trillion, one hundred twenty-one billion, two hundred twenty million, ten thousand, one".