10211211221009 has 8 divisors (see below), whose sum is σ = 10370531148000. Its totient is φ = 10052094640896.

The previous prime is 10211211220967. The next prime is 10211211221027. The reversal of 10211211221009 is 90012211211201.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10211211221009 is a prime.

It is a super-2 number, since 2×10211211221009² (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 (10211211221909) 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, 50735504 + ... + 50936369.

It is an arithmetic number, because the mean of its divisors is an integer number (1296316393500).

Almost surely, 2^{10211211221009} is an apocalyptic number.

It is an amenable number.

10211211221009 is a deficient number, since it is larger than the sum of its proper divisors (159319926991).

10211211221009 is a wasteful number, since it uses less digits than its factorization.

10211211221009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101673439.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 10211211221009 in words is "ten trillion, two hundred eleven billion, two hundred eleven million, two hundred twenty-one thousand, nine".