1220222021011 has 8 divisors (see below), whose sum is σ = 1394802764640. Its totient is φ = 1045707105408.

The previous prime is 1220222021003. The next prime is 1220222021077. The reversal of 1220222021011 is 1101202220221.

It is a happy number.

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

It is not a de Polignac number, because 1220222021011 - 2³ = 1220222021003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220222021611) 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, 16417276 + ... + 16491433.

It is an arithmetic number, because the mean of its divisors is an integer number (174350345580).

Almost surely, 2^{1220222021011} is an apocalyptic number.

1220222021011 is a deficient number, since it is larger than the sum of its proper divisors (174580743629).

1220222021011 is an equidigital number, since it uses as much as digits as its factorization.

1220222021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32914013.

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

Adding to 1220222021011 its reverse (1101202220221), we get a palindrome (2321424241232).

It can be divided in two parts, 12202220210 and 11, that added together give a palindrome (12202220221).

The spelling of 1220222021011 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, twenty-one thousand, eleven".