1022201221211 has 8 divisors (see below), whose sum is σ = 1066660134144. Its totient is φ = 977743590120.

The previous prime is 1022201221201. The next prime is 1022201221231. The reversal of 1022201221211 is 1121221022201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022201221211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022201221211.

It is not an unprimeable number, because it can be changed into a prime (1022201221201) 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, 1538660 + ... + 2100446.

It is an arithmetic number, because the mean of its divisors is an integer number (133332516768).

Almost surely, 2^{1022201221211} is an apocalyptic number.

1022201221211 is a deficient number, since it is larger than the sum of its proper divisors (44458912933).

1022201221211 is an equidigital number, since it uses as much as digits as its factorization.

1022201221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640921.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1022201221211 its reverse (1121221022201), we get a palindrome (2143422243412).

The spelling of 1022201221211 in words is "one trillion, twenty-two billion, two hundred one million, two hundred twenty-one thousand, two hundred eleven".