10021221001211 has 8 divisors (see below), whose sum is σ = 11471326145280. Its totient is φ = 8575741393128.

The previous prime is 10021221001189. The next prime is 10021221001223. The reversal of 10021221001211 is 11210012212001.

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

It is not a de Polignac number, because 10021221001211 - 2³⁰ = 10020147259387 is a prime.

It is a super-2 number, since 2×10021221001211² (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 (10021221001411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1156379351 + ... + 1156388016.

It is an arithmetic number, because the mean of its divisors is an integer number (1433915768160).

Almost surely, 2^{10021221001211} is an apocalyptic number.

10021221001211 is a deficient number, since it is larger than the sum of its proper divisors (1450105144069).

10021221001211 is an equidigital number, since it uses as much as digits as its factorization.

10021221001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312767993.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10021221001211 its reverse (11210012212001), we get a palindrome (21231233213212).

The spelling of 10021221001211 in words is "ten trillion, twenty-one billion, two hundred twenty-one million, one thousand, two hundred eleven".