101211202122020 has 12 divisors (see below), whose sum is σ = 212543524456284. Its totient is φ = 40484480848800.

The previous prime is 101211202121999. The next prime is 101211202122047. The reversal of 101211202122020 is 20221202112101.

It can be written as a sum of positive squares in 2 ways, for example, as 61319674553344 + 39891527568676 = 7830688^2 + 6315974^2 .

It is a super-3 number, since 3×101211202122020³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101211202122020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2530280053031 + ... + 2530280053070.

It is an arithmetic number, because the mean of its divisors is an integer number (17711960371357).

Almost surely, 2^{101211202122020} is an apocalyptic number.

101211202122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101211202122020 is an abundant number, since it is smaller than the sum of its proper divisors (111332322334264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101211202122020 is a wasteful number, since it uses less digits than its factorization.

101211202122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060560106110 (or 5060560106108 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101211202122020 its reverse (20221202112101), we get a palindrome (121432404234121).

The spelling of 101211202122020 in words is "one hundred one trillion, two hundred eleven billion, two hundred two million, one hundred twenty-two thousand, twenty".