1022220011 has 4 divisors (see below), whose sum is σ = 1022641224. Its totient is φ = 1021798800.

The previous prime is 1022219999. The next prime is 1022220029. The reversal of 1022220011 is 1100222201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1022220011 - 2¹⁰ = 1022218987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022219974 and 1022220001.

It is not an unprimeable number, because it can be changed into a prime (1022250011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206945 + ... + 211826.

It is an arithmetic number, because the mean of its divisors is an integer number (255660306).

Almost surely, 2^1022220011 is an apocalyptic number.

1022220011 is a deficient number, since it is larger than the sum of its proper divisors (421213).

1022220011 is an equidigital number, since it uses as much as digits as its factorization.

1022220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421212.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1022220011 is about 31972.1755750215. The cubic root of 1022220011 is about 1007.3524788983.

Adding to 1022220011 its reverse (1100222201), we get a palindrome (2122442212).

The spelling of 1022220011 in words is "one billion, twenty-two million, two hundred twenty thousand, eleven".