1211022102201 has 8 divisors (see below), whose sum is σ = 1699680143520. Its totient is φ = 764856064512.

The previous prime is 1211022102179. The next prime is 1211022102209. The reversal of 1211022102201 is 1022012201121.

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

It is not a de Polignac number, because 1211022102201 - 2⁶ = 1211022102137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1211022102209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10623000840 + ... + 10623000953.

It is an arithmetic number, because the mean of its divisors is an integer number (212460017940).

Almost surely, 2^{1211022102201} is an apocalyptic number.

It is an amenable number.

1211022102201 is a deficient number, since it is larger than the sum of its proper divisors (488658041319).

1211022102201 is a wasteful number, since it uses less digits than its factorization.

1211022102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21246001815.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1211022102201 its reverse (1022012201121), we get a palindrome (2233034303322).

The spelling of 1211022102201 in words is "one trillion, two hundred eleven billion, twenty-two million, one hundred two thousand, two hundred one".