1021222102201 has 16 divisors (see below), whose sum is σ = 1169951650560. Its totient is φ = 873205309440.

The previous prime is 1021222102181. The next prime is 1021222102217. The reversal of 1021222102201 is 1022012221201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1021222102201 - 2¹⁵ = 1021222069433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021222102301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4667781 + ... + 4881661.

It is an arithmetic number, because the mean of its divisors is an integer number (73121978160).

Almost surely, 2^{1021222102201} is an apocalyptic number.

It is an amenable number.

1021222102201 is a deficient number, since it is larger than the sum of its proper divisors (148729548359).

1021222102201 is an equidigital number, since it uses as much as digits as its factorization.

1021222102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215544.

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

Adding to 1021222102201 its reverse (1022012221201), we get a palindrome (2043234323402).

The spelling of 1021222102201 in words is "one trillion, twenty-one billion, two hundred twenty-two million, one hundred two thousand, two hundred one".