101021211021020 has 24 divisors (see below), whose sum is σ = 213329708197200. Its totient is φ = 40182738684032.

The previous prime is 101021211021007. The next prime is 101021211021089. The reversal of 101021211021020 is 20120112120101.

It is a junction number, because it is equal to n+sod(n) for n = 101021211020986 and 101021211021004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14109104105 + ... + 14109111264.

It is an arithmetic number, because the mean of its divisors is an integer number (8888737841550).

Almost surely, 2^{101021211021020} is an apocalyptic number.

101021211021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101021211021020 is an abundant number, since it is smaller than the sum of its proper divisors (112308497176180).

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

101021211021020 is a wasteful number, since it uses less digits than its factorization.

101021211021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28218215557 (or 28218215555 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101021211021020 its reverse (20120112120101), we get a palindrome (121141323141121).

The spelling of 101021211021020 in words is "one hundred one trillion, twenty-one billion, two hundred eleven million, twenty-one thousand, twenty".