101121201110021 has 16 divisors (see below), whose sum is σ = 105313078656576. Its totient is φ = 97012330800000.

The previous prime is 101121201109963. The next prime is 101121201110029. The reversal of 101121201110021 is 120011102121101.

It is a cyclic number.

It is not a de Polignac number, because 101121201110021 - 2²⁶ = 101121134001157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101121201109978 and 101121201110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101121201110029) 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, 4381766 + ... + 14880936.

It is an arithmetic number, because the mean of its divisors is an integer number (6582067416036).

Almost surely, 2^{101121201110021} is an apocalyptic number.

It is an amenable number.

101121201110021 is a deficient number, since it is larger than the sum of its proper divisors (4191877546555).

101121201110021 is a wasteful number, since it uses less digits than its factorization.

101121201110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10503124.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 101121201110021 its reverse (120011102121101), we get a palindrome (221132303231122).

The spelling of 101121201110021 in words is "one hundred one trillion, one hundred twenty-one billion, two hundred one million, one hundred ten thousand, twenty-one".