1222102011 has 16 divisors (see below), whose sum is σ = 1795625216. Its totient is φ = 734571936.

The previous prime is 1222101997. The next prime is 1222102027. The reversal of 1222102011 is 1102012221.

It is not a de Polignac number, because 1222102011 - 2¹⁸ = 1221839867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222102031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362695 + ... + 366048.

It is an arithmetic number, because the mean of its divisors is an integer number (112226576).

Almost surely, 2^1222102011 is an apocalyptic number.

1222102011 is a deficient number, since it is larger than the sum of its proper divisors (573523205).

1222102011 is a wasteful number, since it uses less digits than its factorization.

1222102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728802.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1222102011 is about 34958.5756431809. The cubic root of 1222102011 is about 1069.1430559746.

Adding to 1222102011 its reverse (1102012221), we get a palindrome (2324114232).

The spelling of 1222102011 in words is "one billion, two hundred twenty-two million, one hundred two thousand, eleven".