2221002111122 has 4 divisors (see below), whose sum is σ = 3331503166686. Its totient is φ = 1110501055560.

The previous prime is 2221002111103. The next prime is 2221002111127. The reversal of 2221002111122 is 2211112001222.

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

It can be written as a sum of positive squares in only one way, i.e., 2143878711601 + 77123399521 = 1464199^2 + 277711^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2221002111122.

It is not an unprimeable number, because it can be changed into a prime (2221002111127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555250527779 + ... + 555250527782.

Almost surely, 2^{2221002111122} is an apocalyptic number.

2221002111122 is a deficient number, since it is larger than the sum of its proper divisors (1110501055564).

2221002111122 is a wasteful number, since it uses less digits than its factorization.

2221002111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110501055563.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2221002111122 its reverse (2211112001222), we get a palindrome (4432114112344).

The spelling of 2221002111122 in words is "two trillion, two hundred twenty-one billion, two million, one hundred eleven thousand, one hundred twenty-two".