1022121112012 has 96 divisors (see below), whose sum is σ = 2408511974400. Its totient is φ = 366542219520.

The previous prime is 1022121112007. The next prime is 1022121112013. The reversal of 1022121112012 is 2102111212201.

It is not an unprimeable number, because it can be changed into a prime (1022121112013) 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, 1031673 + ... + 1763119.

It is an arithmetic number, because the mean of its divisors is an integer number (25088666400).

Almost surely, 2^{1022121112012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022121112012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1204255987200).

1022121112012 is an abundant number, since it is smaller than the sum of its proper divisors (1386390862388).

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

1022121112012 is a wasteful number, since it uses less digits than its factorization.

1022121112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731831 (or 731829 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1022121112012 its reverse (2102111212201), we get a palindrome (3124232324213).

The spelling of 1022121112012 in words is "one trillion, twenty-two billion, one hundred twenty-one million, one hundred twelve thousand, twelve".