10221211220122 has 16 divisors (see below), whose sum is σ = 17733185733312. Its totient is φ = 4327741755360.

The previous prime is 10221211220119. The next prime is 10221211220123. The reversal of 10221211220122 is 22102211212201.

It is a super-3 number, since 3×10221211220122³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10221211220122.

It is not an unprimeable number, because it can be changed into a prime (10221211220123) 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, 4398110379 + ... + 4398112702.

It is an arithmetic number, because the mean of its divisors is an integer number (1108324108332).

Almost surely, 2^{10221211220122} is an apocalyptic number.

10221211220122 is a deficient number, since it is larger than the sum of its proper divisors (7511974513190).

10221211220122 is an equidigital number, since it uses as much as digits as its factorization.

10221211220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8796223173.

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

Adding to 10221211220122 its reverse (22102211212201), we get a palindrome (32323422432323).

The spelling of 10221211220122 in words is "ten trillion, two hundred twenty-one billion, two hundred eleven million, two hundred twenty thousand, one hundred twenty-two".