20121201210022 has 16 divisors (see below), whose sum is σ = 32937561978192. Its totient is φ = 9142678328320.

The previous prime is 20121201210013. The next prime is 20121201210029. The reversal of 20121201210022 is 22001210212102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20121201209978 and 20121201210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121201210029) 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, 166049143 + ... + 166170274.

It is an arithmetic number, because the mean of its divisors is an integer number (2058597623637).

Almost surely, 2^{20121201210022} is an apocalyptic number.

20121201210022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20121201210022 is a deficient number, since it is larger than the sum of its proper divisors (12816360768170).

20121201210022 is a wasteful number, since it uses less digits than its factorization.

20121201210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332222183.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20121201210022 its reverse (22001210212102), we get a palindrome (42122411422124).

The spelling of 20121201210022 in words is "twenty trillion, one hundred twenty-one billion, two hundred one million, two hundred ten thousand, twenty-two".