1210222222011 has 192 divisors, whose sum is σ = 2085930887040. Its totient is φ = 668860416000.

The previous prime is 1210222221959. The next prime is 1210222222021. The reversal of 1210222222011 is 1102222220121.

It is a happy number.

1210222222011 is a `hidden beast` number, since 1 + 210 + 2 + 222 + 220 + 11 = 666.

It is not a de Polignac number, because 1210222222011 - 2⁶ = 1210222221947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1210222222021) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1049628411 + ... + 1049629563.

It is an arithmetic number, because the mean of its divisors is an integer number (10864223370).

Almost surely, 2^{1210222222011} is an apocalyptic number.

1210222222011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1210222222011 is a deficient number, since it is larger than the sum of its proper divisors (875708665029).

1210222222011 is a wasteful number, since it uses less digits than its factorization.

1210222222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518 (or 1515 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1210222222011 its reverse (1102222220121), we get a palindrome (2312444442132).

It can be divided in two parts, 1 and 210222222011, that added together give a palindrome (210222222012).

The spelling of 1210222222011 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, two hundred twenty-two thousand, eleven".