10221221221122 has 32 divisors (see below), whose sum is σ = 21519884272320. Its totient is φ = 3227525498880.

The previous prime is 10221221221117. The next prime is 10221221221129. The reversal of 10221221221122 is 22112212212201.

It is a super-2 number, since 2×10221221221122² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10221221221129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554079 + ... + 4780962.

It is an arithmetic number, because the mean of its divisors is an integer number (672496383510).

Almost surely, 2^{10221221221122} is an apocalyptic number.

10221221221122 is an abundant number, since it is smaller than the sum of its proper divisors (11298663051198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10221221221122 is a wasteful number, since it uses less digits than its factorization.

10221221221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6349218.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 10221221221122 its reverse (22112212212201), we get a palindrome (32333433433323).

The spelling of 10221221221122 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".