1000222021212 has 12 divisors (see below), whose sum is σ = 2333851382856. Its totient is φ = 333407340400.

The previous prime is 1000222021157. The next prime is 1000222021289. The reversal of 1000222021212 is 2121202220001.

1000222021212 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1000222021191 and 1000222021200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41675917539 + ... + 41675917562.

It is an arithmetic number, because the mean of its divisors is an integer number (194487615238).

Almost surely, 2^{1000222021212} is an apocalyptic number.

1000222021212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000222021212 is an abundant number, since it is smaller than the sum of its proper divisors (1333629361644).

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

1000222021212 is a wasteful number, since it uses less digits than its factorization.

1000222021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83351835108 (or 83351835106 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1000222021212 its reverse (2121202220001), we get a palindrome (3121424241213).

The spelling of 1000222021212 in words is "one trillion, two hundred twenty-two million, twenty-one thousand, two hundred twelve".