2122211021222 has 4 divisors (see below), whose sum is σ = 3183316531836. Its totient is φ = 1061105510610.

The previous prime is 2122211021221. The next prime is 2122211021243. The reversal of 2122211021222 is 2221201122212.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2122211021222² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2122211021194 and 2122211021203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122211021221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530552755304 + ... + 530552755307.

It is an arithmetic number, because the mean of its divisors is an integer number (795829132959).

Almost surely, 2^{2122211021222} is an apocalyptic number.

2122211021222 is a deficient number, since it is larger than the sum of its proper divisors (1061105510614).

2122211021222 is a wasteful number, since it uses less digits than its factorization.

2122211021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061105510613.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2122211021222 its reverse (2221201122212), we get a palindrome (4343412143434).

The spelling of 2122211021222 in words is "two trillion, one hundred twenty-two billion, two hundred eleven million, twenty-one thousand, two hundred twenty-two".