220221121011 has 8 divisors (see below), whose sum is σ = 303753270480. Its totient is φ = 141751526112.

The previous prime is 220221120989. The next prime is 220221121031. The reversal of 220221121011 is 110121122022.

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

It is not a de Polignac number, because 220221121011 - 2¹⁸ = 220220858867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220221121031) 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, 1265638540 + ... + 1265638713.

It is an arithmetic number, because the mean of its divisors is an integer number (37969158810).

Almost surely, 2^220221121011 is an apocalyptic number.

220221121011 is a deficient number, since it is larger than the sum of its proper divisors (83532149469).

220221121011 is a wasteful number, since it uses less digits than its factorization.

220221121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531277285.

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

Adding to 220221121011 its reverse (110121122022), we get a palindrome (330342243033).

It can be divided in two parts, 2202211 and 21011, that added together give a palindrome (2223222).

The spelling of 220221121011 in words is "two hundred twenty billion, two hundred twenty-one million, one hundred twenty-one thousand, eleven".