1022000002120 has 64 divisors (see below), whose sum is σ = 2364278595840. Its totient is φ = 397357401600.

The previous prime is 1022000002109. The next prime is 1022000002129. The reversal of 1022000002120 is 212000002201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1022000002097 and 1022000002106.

It is not an unprimeable number, because it can be changed into a prime (1022000002129) 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 15 ways as a sum of consecutive naturals, for example, 705322 + ... + 1594201.

It is an arithmetic number, because the mean of its divisors is an integer number (36941853060).

Almost surely, 2^{1022000002120} is an apocalyptic number.

1022000002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022000002120 is an abundant number, since it is smaller than the sum of its proper divisors (1342278593720).

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

1022000002120 is a wasteful number, since it uses less digits than its factorization.

1022000002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299846 (or 2299842 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 1022000002120 its reverse (212000002201), we get a palindrome (1234000004321).

The spelling of 1022000002120 in words is "one trillion, twenty-two billion, two thousand, one hundred twenty".