1021210110101 has 8 divisors (see below), whose sum is σ = 1068375498624. Its totient is φ = 975104618080.

The previous prime is 1021210110073. The next prime is 1021210110121. The reversal of 1021210110101 is 1010110121201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021210110101 - 2²⁶ = 1021143001237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021210110121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264972155 + ... + 264976008.

It is an arithmetic number, because the mean of its divisors is an integer number (133546937328).

Almost surely, 2^{1021210110101} is an apocalyptic number.

It is an amenable number.

1021210110101 is a deficient number, since it is larger than the sum of its proper divisors (47165388523).

1021210110101 is an equidigital number, since it uses as much as digits as its factorization.

1021210110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529948251.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1021210110101 its reverse (1010110121201), we get a palindrome (2031320231302).

It can be divided in two parts, 1021210 and 110101, that added together give a palindrome (1131311).

The spelling of 1021210110101 in words is "one trillion, twenty-one billion, two hundred ten million, one hundred ten thousand, one hundred one".