12011012121022 has 16 divisors (see below), whose sum is σ = 19078311195072. Its totient is φ = 5651649049600.

The previous prime is 12011012121007. The next prime is 12011012121023. The reversal of 12011012121022 is 22012121011021.

It is a junction number, because it is equal to n+sod(n) for n = 12011012120987 and 12011012121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011012121023) 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, 18168883 + ... + 18818350.

It is an arithmetic number, because the mean of its divisors is an integer number (1192394449692).

Almost surely, 2^{12011012121022} is an apocalyptic number.

12011012121022 is a deficient number, since it is larger than the sum of its proper divisors (7067299074050).

12011012121022 is a wasteful number, since it uses less digits than its factorization.

12011012121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36996803.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12011012121022 its reverse (22012121011021), we get a palindrome (34023133132043).

The spelling of 12011012121022 in words is "twelve trillion, eleven billion, twelve million, one hundred twenty-one thousand, twenty-two".