1020212010101 has 4 divisors (see below), whose sum is σ = 1020311330412. Its totient is φ = 1020112689792.

The previous prime is 1020212010089. The next prime is 1020212010113. The reversal of 1020212010101 is 1010102120201.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1020212010089) and next prime (1020212010113).

It can be written as a sum of positive squares in 2 ways, for example, as 677536411876 + 342675598225 = 823126^2 + 585385^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020212010101 - 2³⁴ = 1003032140917 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 (1020212010161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49644746 + ... + 49665291.

It is an arithmetic number, because the mean of its divisors is an integer number (255077832603).

Almost surely, 2^{1020212010101} is an apocalyptic number.

It is an amenable number.

1020212010101 is a deficient number, since it is larger than the sum of its proper divisors (99320311).

1020212010101 is an equidigital number, since it uses as much as digits as its factorization.

1020212010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99320310.

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

Adding to 1020212010101 its reverse (1010102120201), we get a palindrome (2030314130302).

The spelling of 1020212010101 in words is "one trillion, twenty billion, two hundred twelve million, ten thousand, one hundred one".