2221200102121 has 32 divisors (see below), whose sum is σ = 3043174176000. Its totient is φ = 1597666371840.

The previous prime is 2221200102091. The next prime is 2221200102137. The reversal of 2221200102121 is 1212010021222.

It is a happy number.

2221200102121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2221200102121 - 2⁹ = 2221200101609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221200102095 and 2221200102104.

It is not an unprimeable number, because it can be changed into a prime (2221200102161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22593616 + ... + 22691713.

It is an arithmetic number, because the mean of its divisors is an integer number (95099193000).

Almost surely, 2^{2221200102121} is an apocalyptic number.

It is an amenable number.

2221200102121 is a deficient number, since it is larger than the sum of its proper divisors (821974073879).

2221200102121 is a wasteful number, since it uses less digits than its factorization.

2221200102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45285374 (or 45285360 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2221200102121 its reverse (1212010021222), we get a palindrome (3433210123343).

The spelling of 2221200102121 in words is "two trillion, two hundred twenty-one billion, two hundred million, one hundred two thousand, one hundred twenty-one".