12221011023122 has 64 divisors (see below), whose sum is σ = 20489288601600. Its totient is φ = 5420179195200.

The previous prime is 12221011023121. The next prime is 12221011023161. The reversal of 12221011023122 is 22132011012221.

It is a super-2 number, since 2×12221011023122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12221011023094 and 12221011023103.

It is not an unprimeable number, because it can be changed into a prime (12221011023121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84620129 + ... + 84764427.

It is an arithmetic number, because the mean of its divisors is an integer number (320145134400).

Almost surely, 2^{12221011023122} is an apocalyptic number.

12221011023122 is a deficient number, since it is larger than the sum of its proper divisors (8268277578478).

12221011023122 is a wasteful number, since it uses less digits than its factorization.

12221011023122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144879.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12221011023122 its reverse (22132011012221), we get a palindrome (34353022035343).

The spelling of 12221011023122 in words is "twelve trillion, two hundred twenty-one billion, eleven million, twenty-three thousand, one hundred twenty-two".