1020210120101 has 16 divisors (see below), whose sum is σ = 1100238128640. Its totient is φ = 942821383680.

The previous prime is 1020210120079. The next prime is 1020210120143. The reversal of 1020210120101 is 1010210120201.

It is a cyclic number.

It is not a de Polignac number, because 1020210120101 - 2⁶ = 1020210120037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020210120151) 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, 6365516 + ... + 6523818.

It is an arithmetic number, because the mean of its divisors is an integer number (68764883040).

Almost surely, 2^{1020210120101} is an apocalyptic number.

It is an amenable number.

1020210120101 is a deficient number, since it is larger than the sum of its proper divisors (80028008539).

1020210120101 is a wasteful number, since it uses less digits than its factorization.

1020210120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166636.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1020210120101 its reverse (1010210120201), we get a palindrome (2030420240302).

The spelling of 1020210120101 in words is "one trillion, twenty billion, two hundred ten million, one hundred twenty thousand, one hundred one".