10021011121201 has 4 divisors (see below), whose sum is σ = 10021073702004. Its totient is φ = 10020948540400.

The previous prime is 10021011121127. The next prime is 10021011121217. The reversal of 10021011121201 is 10212111012001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7132099018801 + 2888912102400 = 2670599^2 + 1699680^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021011121201 - 2¹⁵ = 10021011088433 is a prime.

It is a super-2 number, since 2×10021011121201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021011101201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31049590 + ... + 31370671.

It is an arithmetic number, because the mean of its divisors is an integer number (2505268425501).

Almost surely, 2^{10021011121201} is an apocalyptic number.

It is an amenable number.

10021011121201 is a deficient number, since it is larger than the sum of its proper divisors (62580803).

10021011121201 is an equidigital number, since it uses as much as digits as its factorization.

10021011121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62580802.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10021011121201 its reverse (10212111012001), we get a palindrome (20233122133202).

The spelling of 10021011121201 in words is "ten trillion, twenty-one billion, eleven million, one hundred twenty-one thousand, two hundred one".