2211201210121 has 8 divisors (see below), whose sum is σ = 2327774248800. Its totient is φ = 2094647574240.

The previous prime is 2211201210107. The next prime is 2211201210133. The reversal of 2211201210121 is 1210121021122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2211201210121 - 2¹⁷ = 2211201079049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211201210095 and 2211201210104.

It is not an unprimeable number, because it can be changed into a prime (2211201250121) 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, 4616476 + ... + 5072893.

It is an arithmetic number, because the mean of its divisors is an integer number (290971781100).

Almost surely, 2^{2211201210121} is an apocalyptic number.

It is an amenable number.

2211201210121 is a deficient number, since it is larger than the sum of its proper divisors (116573038679).

2211201210121 is a wasteful number, since it uses less digits than its factorization.

2211201210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9701399.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2211201210121 its reverse (1210121021122), we get a palindrome (3421322231243).

The spelling of 2211201210121 in words is "two trillion, two hundred eleven billion, two hundred one million, two hundred ten thousand, one hundred twenty-one".