22121121210122 has 32 divisors (see below), whose sum is σ = 36894374636544. Its totient is φ = 9861808507200.

The previous prime is 22121121210121. The next prime is 22121121210197. The reversal of 22121121210122 is 22101212112122.

It is a junction number, because it is equal to n+sod(n) for n = 22121121210094 and 22121121210103.

It is not an unprimeable number, because it can be changed into a prime (22121121210121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130154 + ... + 6652757.

It is an arithmetic number, because the mean of its divisors is an integer number (1152949207392).

Almost surely, 2^{22121121210122} is an apocalyptic number.

22121121210122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22121121210122 is a deficient number, since it is larger than the sum of its proper divisors (14773253426422).

22121121210122 is a wasteful number, since it uses less digits than its factorization.

22121121210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6785774.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22121121210122 its reverse (22101212112122), we get a palindrome (44222333322244).

The spelling of 22121121210122 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty-two".