10121002221111 has 16 divisors (see below), whose sum is σ = 13808696863104. Its totient is φ = 6590325690144.

The previous prime is 10121002221101. The next prime is 10121002221119. The reversal of 10121002221111 is 11112220012101.

It is a happy number.

It is not a de Polignac number, because 10121002221111 - 2⁵ = 10121002221079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121002221119) 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, 9128425 + ... + 10176941.

It is an arithmetic number, because the mean of its divisors is an integer number (863043553944).

Almost surely, 2^{10121002221111} is an apocalyptic number.

10121002221111 is a deficient number, since it is larger than the sum of its proper divisors (3687694641993).

10121002221111 is a wasteful number, since it uses less digits than its factorization.

10121002221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123390.

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

Adding to 10121002221111 its reverse (11112220012101), we get a palindrome (21233222233212).

The spelling of 10121002221111 in words is "ten trillion, one hundred twenty-one billion, two million, two hundred twenty-one thousand, one hundred eleven".