11111012220010 has 32 divisors (see below), whose sum is σ = 20206354426560. Its totient is φ = 4398623970048.

The previous prime is 11111012220001. The next prime is 11111012220013. The reversal of 11111012220010 is 1002221011111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11111012220013) 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, 6426420 + ... + 7969999.

It is an arithmetic number, because the mean of its divisors is an integer number (631448575830).

Almost surely, 2^{11111012220010} is an apocalyptic number.

11111012220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111012220010 is a deficient number, since it is larger than the sum of its proper divisors (9095342206550).

11111012220010 is a wasteful number, since it uses less digits than its factorization.

11111012220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14397222.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11111012220010 its reverse (1002221011111), we get a palindrome (12113233231121).

The spelling of 11111012220010 in words is "eleven trillion, one hundred eleven billion, twelve million, two hundred twenty thousand, ten".