10021201212021 has 8 divisors (see below), whose sum is σ = 13421519112960. Its totient is φ = 6650842059552.

The previous prime is 10021201211999. The next prime is 10021201212047. The reversal of 10021201212021 is 12021210212001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10021201212021 - 2¹¹ = 10021201209973 is a prime.

It is a super-3 number, since 3×10021201212021³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021201212221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7489686336 + ... + 7489687673.

It is an arithmetic number, because the mean of its divisors is an integer number (1677689889120).

Almost surely, 2^{10021201212021} is an apocalyptic number.

It is an amenable number.

10021201212021 is a deficient number, since it is larger than the sum of its proper divisors (3400317900939).

10021201212021 is a wasteful number, since it uses less digits than its factorization.

10021201212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14979374235.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10021201212021 its reverse (12021210212001), we get a palindrome (22042411424022).

The spelling of 10021201212021 in words is "ten trillion, twenty-one billion, two hundred one million, two hundred twelve thousand, twenty-one".