101210020101 has 20 divisors (see below), whose sum is σ = 154407097152. Its totient is φ = 66037741128.

The previous prime is 101210020091. The next prime is 101210020103. The reversal of 101210020101 is 101020012101.

It is a happy number.

It is not a de Polignac number, because 101210020101 - 2⁵ = 101210020069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101210020103) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13288815 + ... + 13296428.

Almost surely, 2^101210020101 is an apocalyptic number.

It is an amenable number.

101210020101 is a deficient number, since it is larger than the sum of its proper divisors (53197077051).

101210020101 is an equidigital number, since it uses as much as digits as its factorization.

101210020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26585302 (or 26585293 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 101210020101 its reverse (101020012101), we get a palindrome (202230032202).

The spelling of 101210020101 in words is "one hundred one billion, two hundred ten million, twenty thousand, one hundred one".