1021212220222 has 8 divisors (see below), whose sum is σ = 1598419127376. Its totient is φ = 488405844432.

The previous prime is 1021212220183. The next prime is 1021212220271. The reversal of 1021212220222 is 2220222121201.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1021212220222.

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, 11100132783 + ... + 11100132874.

It is an arithmetic number, because the mean of its divisors is an integer number (199802390922).

Almost surely, 2^{1021212220222} is an apocalyptic number.

1021212220222 is a deficient number, since it is larger than the sum of its proper divisors (577206907154).

1021212220222 is a wasteful number, since it uses less digits than its factorization.

1021212220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22200265682.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1021212220222 its reverse (2220222121201), we get a palindrome (3241434341423).

The spelling of 1021212220222 in words is "one trillion, twenty-one billion, two hundred twelve million, two hundred twenty thousand, two hundred twenty-two".