10202211212221 has 8 divisors (see below), whose sum is σ = 12035788342784. Its totient is φ = 8462663678160.

The previous prime is 10202211212209. The next prime is 10202211212231. The reversal of 10202211212221 is 12221211220201.

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 10202211212221 - 2¹¹ = 10202211210173 is a prime.

It is a super-2 number, since 2×10202211212221² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202211212231) 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, 23507398890 + ... + 23507399323.

It is an arithmetic number, because the mean of its divisors is an integer number (1504473542848).

Almost surely, 2^{10202211212221} is an apocalyptic number.

It is an amenable number.

10202211212221 is a deficient number, since it is larger than the sum of its proper divisors (1833577130563).

10202211212221 is an equidigital number, since it uses as much as digits as its factorization.

10202211212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47014798251.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 10202211212221 its reverse (12221211220201), we get a palindrome (22423422432422).

The spelling of 10202211212221 in words is "ten trillion, two hundred two billion, two hundred eleven million, two hundred twelve thousand, two hundred twenty-one".