1022121001212 has 24 divisors (see below), whose sum is σ = 2389357426512. Its totient is φ = 340077225600.

The previous prime is 1022121001201. The next prime is 1022121001217. The reversal of 1022121001212 is 2121001212201.

It is a super-2 number, since 2×1022121001212² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1022121001191 and 1022121001200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022121001217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78715089 + ... + 78728072.

It is an arithmetic number, because the mean of its divisors is an integer number (99556559438).

Almost surely, 2^{1022121001212} is an apocalyptic number.

1022121001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022121001212 is an abundant number, since it is smaller than the sum of its proper divisors (1367236425300).

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

1022121001212 is a wasteful number, since it uses less digits than its factorization.

1022121001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157443709 (or 157443707 counting only the distinct ones).

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

Adding to 1022121001212 its reverse (2121001212201), we get a palindrome (3143122213413).

The spelling of 1022121001212 in words is "one trillion, twenty-two billion, one hundred twenty-one million, one thousand, two hundred twelve".