2221021101122 has 16 divisors (see below), whose sum is σ = 3527890663320. Its totient is φ = 1045071863808.

The previous prime is 2221021101121. The next prime is 2221021101127. The reversal of 2221021101122 is 2211011201222.

It can be written as a sum of positive squares in 4 ways, for example, as 1228907490721 + 992113610401 = 1108561^2 + 996049^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 2221021101122.

It is not an unprimeable number, because it can be changed into a prime (2221021101121) 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, 3264047 + ... + 3885362.

Almost surely, 2^{2221021101122} is an apocalyptic number.

2221021101122 is a deficient number, since it is larger than the sum of its proper divisors (1306869562198).

2221021101122 is a wasteful number, since it uses less digits than its factorization.

2221021101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7158565.

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

Adding to 2221021101122 its reverse (2211011201222), we get a palindrome (4432032302344).

The spelling of 2221021101122 in words is "two trillion, two hundred twenty-one billion, twenty-one million, one hundred one thousand, one hundred twenty-two".