1022102201221 has 16 divisors (see below), whose sum is σ = 1061958498048. Its totient is φ = 982961481600.

The previous prime is 1022102201207. The next prime is 1022102201273. The reversal of 1022102201221 is 1221022012201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1022102201221 - 2¹³ = 1022102193029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022102201195 and 1022102201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022102201921) 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, 19293856 + ... + 19346758.

It is an arithmetic number, because the mean of its divisors is an integer number (66372406128).

Almost surely, 2^{1022102201221} is an apocalyptic number.

It is an amenable number.

1022102201221 is a deficient number, since it is larger than the sum of its proper divisors (39856296827).

1022102201221 is an equidigital number, since it uses as much as digits as its factorization.

1022102201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59652.

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

Adding to 1022102201221 its reverse (1221022012201), we get a palindrome (2243124213422).

The spelling of 1022102201221 in words is "one trillion, twenty-two billion, one hundred two million, two hundred one thousand, two hundred twenty-one".