12122102021022 has 192 divisors, whose sum is σ = 32242232715264. Its totient is φ = 3212589219840.

The previous prime is 12122102021017. The next prime is 12122102021053. The reversal of 12122102021022 is 22012020122121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12122102020986 and 12122102021004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 441480318 + ... + 441507774.

It is an arithmetic number, because the mean of its divisors is an integer number (167928295392).

Almost surely, 2^{12122102021022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12122102021022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16121116357632).

12122102021022 is an abundant number, since it is smaller than the sum of its proper divisors (20120130694242).

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

12122102021022 is a wasteful number, since it uses less digits than its factorization.

12122102021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30463 (or 30460 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12122102021022 its reverse (22012020122121), we get a palindrome (34134122143143).

The spelling of 12122102021022 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, twenty-one thousand, twenty-two".