1022111020221 has 8 divisors (see below), whose sum is σ = 1362819829440. Its totient is φ = 681404778912.

The previous prime is 1022111020219. The next prime is 1022111020241. The reversal of 1022111020221 is 1220201112201.

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

It is not a de Polignac number, because 1022111020221 - 2¹ = 1022111020219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1022111020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022111020241) 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, 669520 + ... + 1578758.

It is an arithmetic number, because the mean of its divisors is an integer number (170352478680).

Almost surely, 2^{1022111020221} is an apocalyptic number.

It is an amenable number.

1022111020221 is a deficient number, since it is larger than the sum of its proper divisors (340708809219).

1022111020221 is an equidigital number, since it uses as much as digits as its factorization.

1022111020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283955.

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

Adding to 1022111020221 its reverse (1220201112201), we get a palindrome (2242312132422).

The spelling of 1022111020221 in words is "one trillion, twenty-two billion, one hundred eleven million, twenty thousand, two hundred twenty-one".