10101101111021 has 16 divisors (see below), whose sum is σ = 10402297371648. Its totient is φ = 9802522195200.

The previous prime is 10101101110999. The next prime is 10101101111029. The reversal of 10101101111021 is 12011110110101.

It is a happy number.

It is not a de Polignac number, because 10101101111021 - 2¹⁰ = 10101101109997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10101101110993 and 10101101111011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101101111029) 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, 170819366 + ... + 170878488.

It is an arithmetic number, because the mean of its divisors is an integer number (650143585728).

Almost surely, 2^{10101101111021} is an apocalyptic number.

It is an amenable number.

10101101111021 is a deficient number, since it is larger than the sum of its proper divisors (301196260627).

10101101111021 is a wasteful number, since it uses less digits than its factorization.

10101101111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81172.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 10101101111021 its reverse (12011110110101), we get a palindrome (22112211221122).

The spelling of 10101101111021 in words is "ten trillion, one hundred one billion, one hundred one million, one hundred eleven thousand, twenty-one".