10010121020010 has 48 divisors (see below), whose sum is σ = 26256636047304. Its totient is φ = 2645742898176.

The previous prime is 10010121019991. The next prime is 10010121020027. The reversal of 10010121020010 is 1002012101001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2461469174649 + 7548651845361 = 1568907^2 + 2747481^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10010121019974 and 10010121020001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 492129507 + ... + 492149846.

Almost surely, 2^{10010121020010} is an apocalyptic number.

10010121020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10010121020010 is an abundant number, since it is smaller than the sum of its proper divisors (16246515027294).

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

10010121020010 is a wasteful number, since it uses less digits than its factorization.

10010121020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984279479 (or 984279476 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10010121020010 its reverse (1002012101001), we get a palindrome (11012133121011).

The spelling of 10010121020010 in words is "ten trillion, ten billion, one hundred twenty-one million, twenty thousand, ten".