11111020122 has 16 divisors (see below), whose sum is σ = 22302267552. Its totient is φ = 3690302160.

The previous prime is 11111020121. The next prime is 11111020139. The reversal of 11111020122 is 22102011111.

It is a junction number, because it is equal to n+sod(n) for n = 11111020098 and 11111020107.

It is not an unprimeable number, because it can be changed into a prime (11111020121) 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, 3341004 + ... + 3344327.

It is an arithmetic number, because the mean of its divisors is an integer number (1393891722).

Almost surely, 2^11111020122 is an apocalyptic number.

11111020122 is an abundant number, since it is smaller than the sum of its proper divisors (11191247430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111020122 is a wasteful number, since it uses less digits than its factorization.

11111020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6685613.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11111020122 its reverse (22102011111), we get a palindrome (33213031233).

The spelling of 11111020122 in words is "eleven billion, one hundred eleven million, twenty thousand, one hundred twenty-two".