10221012121211 has 8 divisors (see below), whose sum is σ = 10720665117600. Its totient is φ = 9725964221952.

The previous prime is 10221012121183. The next prime is 10221012121219. The reversal of 10221012121211 is 11212121012201.

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

It is a cyclic number.

It is not a de Polignac number, because 10221012121211 - 2¹⁴ = 10221012104827 is a prime.

It is a super-3 number, since 3×10221012121211³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10221012121211.

It is not an unprimeable number, because it can be changed into a prime (10221012121219) 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, 1151269736 + ... + 1151278613.

It is an arithmetic number, because the mean of its divisors is an integer number (1340083139700).

Almost surely, 2^{10221012121211} is an apocalyptic number.

10221012121211 is a deficient number, since it is larger than the sum of its proper divisors (499652996389).

10221012121211 is a wasteful number, since it uses less digits than its factorization.

10221012121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302548565.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10221012121211 its reverse (11212121012201), we get a palindrome (21433133133412).

The spelling of 10221012121211 in words is "ten trillion, two hundred twenty-one billion, twelve million, one hundred twenty-one thousand, two hundred eleven".