101212010120101 has 4 divisors (see below), whose sum is σ = 101725776669132. Its totient is φ = 100698243571072.

The previous prime is 101212010120099. The next prime is 101212010120119. The reversal of 101212010120101 is 101021010212101.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 97019545022500 + 4192465097601 = 9849850^2 + 2047551^2 .

It is a cyclic number.

It is not a de Polignac number, because 101212010120101 - 2¹ = 101212010120099 is a prime.

It is a super-4 number, since 4×101212010120101⁴ (a number of 57 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212010124101) 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, 256883274220 + ... + 256883274613.

It is an arithmetic number, because the mean of its divisors is an integer number (25431444167283).

Almost surely, 2^{101212010120101} is an apocalyptic number.

It is an amenable number.

101212010120101 is a deficient number, since it is larger than the sum of its proper divisors (513766549031).

101212010120101 is an equidigital number, since it uses as much as digits as its factorization.

101212010120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513766549030.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101212010120101 its reverse (101021010212101), we get a palindrome (202233020332202).

The spelling of 101212010120101 in words is "one hundred one trillion, two hundred twelve billion, ten million, one hundred twenty thousand, one hundred one".