21222221210030 has 32 divisors (see below), whose sum is σ = 39013181919360. Its totient is φ = 8308184855040.

The previous prime is 21222221209999. The next prime is 21222221210131. The reversal of 21222221210030 is 3001212222212.

It is a junction number, because it is equal to n+sod(n) for n = 21222221209984 and 21222221210011.

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, 59239286 + ... + 59596454.

It is an arithmetic number, because the mean of its divisors is an integer number (1219161934980).

Almost surely, 2^{21222221210030} is an apocalyptic number.

21222221210030 is a deficient number, since it is larger than the sum of its proper divisors (17790960709330).

21222221210030 is a wasteful number, since it uses less digits than its factorization.

21222221210030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483644.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21222221210030 its reverse (3001212222212), we get a palindrome (24223433432242).

The spelling of 21222221210030 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred ten thousand, thirty".