2221210202122 has 16 divisors (see below), whose sum is σ = 3533671544832. Its totient is φ = 1044902873520.

The previous prime is 2221210202083. The next prime is 2221210202171. The reversal of 2221210202122 is 2212020121222.

It is a self number, because there is not a number n which added to its sum of digits gives 2221210202122.

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, 395793738 + ... + 395799349.

It is an arithmetic number, because the mean of its divisors is an integer number (220854471552).

Almost surely, 2^{2221210202122} is an apocalyptic number.

2221210202122 is a deficient number, since it is larger than the sum of its proper divisors (1312461342710).

2221210202122 is a wasteful number, since it uses less digits than its factorization.

2221210202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791593173.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2221210202122 its reverse (2212020121222), we get a palindrome (4433230323344).

The spelling of 2221210202122 in words is "two trillion, two hundred twenty-one billion, two hundred ten million, two hundred two thousand, one hundred twenty-two".