1000122020212 has 48 divisors (see below), whose sum is σ = 2072619343872. Its totient is φ = 413219881440.

The previous prime is 1000122020203. The next prime is 1000122020251. The reversal of 1000122020212 is 2120202210001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1000122020192 and 1000122020201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1962238 + ... + 2418805.

It is an arithmetic number, because the mean of its divisors is an integer number (43179569664).

Almost surely, 2^{1000122020212} is an apocalyptic number.

It is an amenable number.

1000122020212 is an abundant number, since it is smaller than the sum of its proper divisors (1072497323660).

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

1000122020212 is a wasteful number, since it uses less digits than its factorization.

1000122020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381348 (or 4381346 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1000122020212 its reverse (2120202210001), we get a palindrome (3120324230213).

The spelling of 1000122020212 in words is "one trillion, one hundred twenty-two million, twenty thousand, two hundred twelve".