11111222020101 has 16 divisors (see below), whose sum is σ = 16932420816000. Its totient is φ = 6348881645568.

The previous prime is 11111222020057. The next prime is 11111222020123. The reversal of 11111222020101 is 10102022211111.

It is a happy number.

It is not a de Polignac number, because 11111222020101 - 2⁶ = 11111222020037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111222000101) 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, 15818076 + ... + 16505573.

It is an arithmetic number, because the mean of its divisors is an integer number (1058276301000).

Almost surely, 2^{11111222020101} is an apocalyptic number.

It is an amenable number.

11111222020101 is a deficient number, since it is larger than the sum of its proper divisors (5821198795899).

11111222020101 is a wasteful number, since it uses less digits than its factorization.

11111222020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32340028.

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

Adding to 11111222020101 its reverse (10102022211111), we get a palindrome (21213244231212).

The spelling of 11111222020101 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-two million, twenty thousand, one hundred one".