22021121030012 has 12 divisors (see below), whose sum is σ = 41501343479736. Its totient is φ = 10163594321520.

The previous prime is 22021121029997. The next prime is 22021121030021. The reversal of 22021121030012 is 21003012112022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211741548314 + ... + 211741548417.

It is an arithmetic number, because the mean of its divisors is an integer number (3458445289978).

Almost surely, 2^{22021121030012} is an apocalyptic number.

It is an amenable number.

22021121030012 is a deficient number, since it is larger than the sum of its proper divisors (19480222449724).

22021121030012 is a wasteful number, since it uses less digits than its factorization.

22021121030012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423483096748 (or 423483096746 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22021121030012 its reverse (21003012112022), we get a palindrome (43024133142034).

The spelling of 22021121030012 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-one million, thirty thousand, twelve".