121222002220011 has 36 divisors (see below), whose sum is σ = 219958380534256. Its totient is φ = 62972468681760.

The previous prime is 121222002220003. The next prime is 121222002220051. The reversal of 121222002220011 is 110022200222121.

It is a happy number.

121222002220011 is a `hidden beast` number, since 1 + 212 + 220 + 0 + 2 + 220 + 0 + 11 = 666.

It is not a de Polignac number, because 121222002220011 - 2³ = 121222002220003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121222002220051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7951061656 + ... + 7951076901.

Almost surely, 2^{121222002220011} is an apocalyptic number.

121222002220011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121222002220011 is a deficient number, since it is larger than the sum of its proper divisors (98736378314245).

121222002220011 is a wasteful number, since it uses less digits than its factorization.

121222002220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15902138592 (or 15902138578 counting only the distinct ones).

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

Adding to 121222002220011 its reverse (110022200222121), we get a palindrome (231244202442132).

The spelling of 121222002220011 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two million, two hundred twenty thousand, eleven".