10221121112222 has 16 divisors (see below), whose sum is σ = 16270189891632. Its totient is φ = 4799081688960.

The previous prime is 10221121112221. The next prime is 10221121112227. The reversal of 10221121112222 is 22221112112201.

It is a junction number, because it is equal to n+sod(n) for n = 10221121112194 and 10221121112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221121112221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339286529 + ... + 339316652.

It is an arithmetic number, because the mean of its divisors is an integer number (1016886868227).

Almost surely, 2^{10221121112222} is an apocalyptic number.

10221121112222 is a deficient number, since it is larger than the sum of its proper divisors (6049068779410).

10221121112222 is a wasteful number, since it uses less digits than its factorization.

10221121112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678603643.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 10221121112222 its reverse (22221112112201), we get a palindrome (32442233224423).

The spelling of 10221121112222 in words is "ten trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred twelve thousand, two hundred twenty-two".