2221022011 has 8 divisors (see below), whose sum is σ = 2406194784. Its totient is φ = 2037895680.

The previous prime is 2221022003. The next prime is 2221022057. The reversal of 2221022011 is 1102201222.

It is a happy number.

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 2221022011 - 2³ = 2221022003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 2221021982 and 2221022000.

It is not an unprimeable number, because it can be changed into a prime (2221022411) 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, 509350 + ... + 513691.

It is an arithmetic number, because the mean of its divisors is an integer number (300774348).

Almost surely, 2^2221022011 is an apocalyptic number.

2221022011 is a deficient number, since it is larger than the sum of its proper divisors (185172773).

2221022011 is a wasteful number, since it uses less digits than its factorization.

2221022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023221.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2221022011 is about 47127.7201973531. The cubic root of 2221022011 is about 1304.7209046776.

Adding to 2221022011 its reverse (1102201222), we get a palindrome (3323223233).

The spelling of 2221022011 in words is "two billion, two hundred twenty-one million, twenty-two thousand, eleven".