2221211202122 has 32 divisors (see below), whose sum is σ = 3803354694144. Its totient is φ = 963687801600.

The previous prime is 2221211202113. The next prime is 2221211202131. The reversal of 2221211202122 is 2212021121222.

It is an interprime number because it is at equal distance from previous prime (2221211202113) and next prime (2221211202131).

It is a junction number, because it is equal to n+sod(n) for n = 2221211202094 and 2221211202103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22257803 + ... + 22357374.

It is an arithmetic number, because the mean of its divisors is an integer number (118854834192).

Almost surely, 2^{2221211202122} is an apocalyptic number.

2221211202122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2221211202122 is a deficient number, since it is larger than the sum of its proper divisors (1582143492022).

2221211202122 is a wasteful number, since it uses less digits than its factorization.

2221211202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44615294.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2221211202122 its reverse (2212021121222), we get a palindrome (4433232323344).

The spelling of 2221211202122 in words is "two trillion, two hundred twenty-one billion, two hundred eleven million, two hundred two thousand, one hundred twenty-two".