1122111220101 has 16 divisors (see below), whose sum is σ = 1562628552000. Its totient is φ = 715519381248.

The previous prime is 1122111220099. The next prime is 1122111220129. The reversal of 1122111220101 is 1010221112211.

It is a happy number.

It is not a de Polignac number, because 1122111220101 - 2¹ = 1122111220099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122111220201) 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, 85663876 + ... + 85676973.

It is an arithmetic number, because the mean of its divisors is an integer number (97664284500).

Almost surely, 2^{1122111220101} is an apocalyptic number.

It is an amenable number.

1122111220101 is a deficient number, since it is larger than the sum of its proper divisors (440517331899).

1122111220101 is a wasteful number, since it uses less digits than its factorization.

1122111220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171340948.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1122111220101 its reverse (1010221112211), we get a palindrome (2132332332312).

The spelling of 1122111220101 in words is "one trillion, one hundred twenty-two billion, one hundred eleven million, two hundred twenty thousand, one hundred one".