2211221011122 has 16 divisors (see below), whose sum is σ = 4913824469280. Its totient is φ = 737073670356.

The previous prime is 2211221011081. The next prime is 2211221011133. The reversal of 2211221011122 is 2211101221122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2211221011095 and 2211221011104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20474268568 + ... + 20474268675.

It is an arithmetic number, because the mean of its divisors is an integer number (307114029330).

Almost surely, 2^{2211221011122} is an apocalyptic number.

2211221011122 is an abundant number, since it is smaller than the sum of its proper divisors (2702603458158).

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

2211221011122 is a wasteful number, since it uses less digits than its factorization.

2211221011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40948537254 (or 40948537248 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2211221011122 its reverse (2211101221122), we get a palindrome (4422322232244).

The spelling of 2211221011122 in words is "two trillion, two hundred eleven billion, two hundred twenty-one million, eleven thousand, one hundred twenty-two".