10100212021020 has 72 divisors (see below), whose sum is σ = 31085280655632. Its totient is φ = 2448536245760.

The previous prime is 10100212021007. The next prime is 10100212021037. The reversal of 10100212021020 is 2012021200101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10100212020987 and 10100212021005.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 695599629 + ... + 695614148.

It is an arithmetic number, because the mean of its divisors is an integer number (431740009106).

Almost surely, 2^{10100212021020} is an apocalyptic number.

10100212021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10100212021020 is an abundant number, since it is smaller than the sum of its proper divisors (20985068634612).

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

10100212021020 is a wasteful number, since it uses less digits than its factorization.

10100212021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391213811 (or 1391213798 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10100212021020 its reverse (2012021200101), we get a palindrome (12112233221121).

The spelling of 10100212021020 in words is "ten trillion, one hundred billion, two hundred twelve million, twenty-one thousand, twenty".