1000021222212 has 24 divisors (see below), whose sum is σ = 2359600639200. Its totient is φ = 329595009216.

The previous prime is 1000021222201. The next prime is 1000021222231. The reversal of 1000021222212 is 2122221200001.

1000021222212 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 junction number, because it is equal to n+sod(n) for n = 1000021222191 and 1000021222200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468173662 + ... + 468175797.

It is an arithmetic number, because the mean of its divisors is an integer number (98316693300).

Almost surely, 2^{1000021222212} is an apocalyptic number.

1000021222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000021222212 is an abundant number, since it is smaller than the sum of its proper divisors (1359579416988).

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

1000021222212 is a wasteful number, since it uses less digits than its factorization.

1000021222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936349555 (or 936349553 counting only the distinct ones).

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

Adding to 1000021222212 its reverse (2122221200001), we get a palindrome (3122242422213).

The spelling of 1000021222212 in words is "one trillion, twenty-one million, two hundred twenty-two thousand, two hundred twelve".