1111122022101 has 16 divisors (see below), whose sum is σ = 1823379729024. Its totient is φ = 586086341184.

The previous prime is 1111122022097. The next prime is 1111122022111. The reversal of 1111122022101 is 1012202211111.

It is a happy number.

It is not a de Polignac number, because 1111122022101 - 2² = 1111122022097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111122022111) 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, 2035021746 + ... + 2035022291.

It is an arithmetic number, because the mean of its divisors is an integer number (113961233064).

Almost surely, 2^{1111122022101} is an apocalyptic number.

It is an amenable number.

1111122022101 is a deficient number, since it is larger than the sum of its proper divisors (712257706923).

1111122022101 is a wasteful number, since it uses less digits than its factorization.

1111122022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070044060.

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

Adding to 1111122022101 its reverse (1012202211111), we get a palindrome (2123324233212).

The spelling of 1111122022101 in words is "one trillion, one hundred eleven billion, one hundred twenty-two million, twenty-two thousand, one hundred one".