2111320221222 has 16 divisors (see below), whose sum is σ = 4233665617920. Its totient is φ = 701935877832.

The previous prime is 2111320221221. The next prime is 2111320221239. The reversal of 2111320221222 is 2221220231112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111320221221) 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, 459379822 + ... + 459384417.

It is an arithmetic number, because the mean of its divisors is an integer number (264604101120).

Almost surely, 2^{2111320221222} is an apocalyptic number.

2111320221222 is an abundant number, since it is smaller than the sum of its proper divisors (2122345396698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111320221222 is a wasteful number, since it uses less digits than its factorization.

2111320221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918764627.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2111320221222 its reverse (2221220231112), we get a palindrome (4332540452334).

The spelling of 2111320221222 in words is "two trillion, one hundred eleven billion, three hundred twenty million, two hundred twenty-one thousand, two hundred twenty-two".