10000202121020 has 12 divisors (see below), whose sum is σ = 21000424454184. Its totient is φ = 4000080848400.

The previous prime is 10000202121017. The next prime is 10000202121031. The reversal of 10000202121020 is 2012120200001.

It is a happy number.

It is a super-2 number, since 2×10000202121020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10000202120992 and 10000202121010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250005053006 + ... + 250005053045.

It is an arithmetic number, because the mean of its divisors is an integer number (1750035371182).

Almost surely, 2^{10000202121020} is an apocalyptic number.

10000202121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10000202121020 is an abundant number, since it is smaller than the sum of its proper divisors (11000222333164).

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

10000202121020 is a wasteful number, since it uses less digits than its factorization.

10000202121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500010106060 (or 500010106058 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10000202121020 its reverse (2012120200001), we get a palindrome (12012322321021).

The spelling of 10000202121020 in words is "ten trillion, two hundred two million, one hundred twenty-one thousand, twenty".