22012212212122 has 64 divisors (see below), whose sum is σ = 37427795919360. Its totient is φ = 9617597080000.

The previous prime is 22012212212117. The next prime is 22012212212147. The reversal of 22012212212122 is 22121221221022.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 22012212212093 and 22012212212102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359158893 + ... + 359220175.

It is an arithmetic number, because the mean of its divisors is an integer number (584809311240).

Almost surely, 2^{22012212212122} is an apocalyptic number.

22012212212122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22012212212122 is a deficient number, since it is larger than the sum of its proper divisors (15415583707238).

22012212212122 is a wasteful number, since it uses less digits than its factorization.

22012212212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63819.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22012212212122 its reverse (22121221221022), we get a palindrome (44133433433144).

The spelling of 22012212212122 in words is "twenty-two trillion, twelve billion, two hundred twelve million, two hundred twelve thousand, one hundred twenty-two".