1000000021222 has 8 divisors (see below), whose sum is σ = 1500005236896. Its totient is φ = 499998275592.

The previous prime is 1000000021219. The next prime is 1000000021249. The reversal of 1000000021222 is 2221200000001.

1000000021222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1000000021199 and 1000000021208.

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, 44848 + ... + 1414924.

It is an arithmetic number, because the mean of its divisors is an integer number (187500654612).

Almost surely, 2^{1000000021222} is an apocalyptic number.

1000000021222 is a deficient number, since it is larger than the sum of its proper divisors (500005215674).

1000000021222 is a wasteful number, since it uses less digits than its factorization.

1000000021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735022.

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

Adding to 1000000021222 its reverse (2221200000001), we get a palindrome (3221200021223).

The spelling of 1000000021222 in words is "one trillion, twenty-one thousand, two hundred twenty-two".