1022120121012 has 24 divisors (see below), whose sum is σ = 2385233524800. Its totient is φ = 340665767616.

The previous prime is 1022120120963. The next prime is 1022120121013. The reversal of 1022120121012 is 2101210212201.

It is a junction number, because it is equal to n+sod(n) for n = 1022120120982 and 1022120121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022120121013) 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, 5013312 + ... + 5213207.

It is an arithmetic number, because the mean of its divisors is an integer number (99384730200).

Almost surely, 2^{1022120121012} is an apocalyptic number.

1022120121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022120121012 is an abundant number, since it is smaller than the sum of its proper divisors (1363113403788).

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

1022120121012 is a wasteful number, since it uses less digits than its factorization.

1022120121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10234855 (or 10234853 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1022120121012 its reverse (2101210212201), we get a palindrome (3123330333213).

The spelling of 1022120121012 in words is "one trillion, twenty-two billion, one hundred twenty million, one hundred twenty-one thousand, twelve".