1220021020211 has 8 divisors (see below), whose sum is σ = 1439287471104. Its totient is φ = 1011999002760.

The previous prime is 1220021020201. The next prime is 1220021020213. The reversal of 1220021020211 is 1120201200221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220021020211 - 2³⁸ = 945143113267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220021020213) 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, 2811108125 + ... + 2811108558.

It is an arithmetic number, because the mean of its divisors is an integer number (179910933888).

Almost surely, 2^{1220021020211} is an apocalyptic number.

1220021020211 is a deficient number, since it is larger than the sum of its proper divisors (219266450893).

1220021020211 is an equidigital number, since it uses as much as digits as its factorization.

1220021020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5622216721.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220021020211 its reverse (1120201200221), we get a palindrome (2340222220432).

The spelling of 1220021020211 in words is "one trillion, two hundred twenty billion, twenty-one million, twenty thousand, two hundred eleven".