1212202222011 has 40 divisors (see below), whose sum is σ = 1978728455088. Its totient is φ = 733445280000.

The previous prime is 1212202222001. The next prime is 1212202222013. The reversal of 1212202222011 is 1102222022121.

It is a happy number.

1212202222011 is a `hidden beast` number, since 1 + 21 + 220 + 222 + 201 + 1 = 666.

It is not a de Polignac number, because 1212202222011 - 2¹⁰ = 1212202220987 is a prime.

It is a super-3 number, since 3×1212202222011³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212202222013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 596370 + ... + 1667351.

Almost surely, 2^{1212202222011} is an apocalyptic number.

1212202222011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1212202222011 is a deficient number, since it is larger than the sum of its proper divisors (766526233077).

1212202222011 is a wasteful number, since it uses less digits than its factorization.

1212202222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264345 (or 2264336 counting only the distinct ones).

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

Adding to 1212202222011 its reverse (1102222022121), we get a palindrome (2314424244132).

The spelling of 1212202222011 in words is "one trillion, two hundred twelve billion, two hundred two million, two hundred twenty-two thousand, eleven".