22012011111212 has 12 divisors (see below), whose sum is σ = 38550719545800. Its totient is φ = 10997519812416.

The previous prime is 22012011111193. The next prime is 22012011111263. The reversal of 22012011111212 is 21211111021022.

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, 2121429962 + ... + 2121440337.

It is an arithmetic number, because the mean of its divisors is an integer number (3212559962150).

Almost surely, 2^{22012011111212} is an apocalyptic number.

It is an amenable number.

22012011111212 is a deficient number, since it is larger than the sum of its proper divisors (16538708434588).

22012011111212 is a wasteful number, since it uses less digits than its factorization.

22012011111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242871600 (or 4242871598 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22012011111212 its reverse (21211111021022), we get a palindrome (43223122132234).

The spelling of 22012011111212 in words is "twenty-two trillion, twelve billion, eleven million, one hundred eleven thousand, two hundred twelve".