22001212001122 has 16 divisors (see below), whose sum is σ = 33007237262712. Its totient is φ = 10998799735680.

The previous prime is 22001212001077. The next prime is 22001212001129. The reversal of 22001212001122 is 22110021210022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9188470500001 + 12812741501121 = 3031249^2 + 3579489^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22001212001096 and 22001212001105.

It is not an unprimeable number, because it can be changed into a prime (22001212001129) 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, 602870308 + ... + 602906800.

Almost surely, 2^{22001212001122} is an apocalyptic number.

22001212001122 is a deficient number, since it is larger than the sum of its proper divisors (11006025261590).

22001212001122 is a wasteful number, since it uses less digits than its factorization.

22001212001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77733.

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

Adding to 22001212001122 its reverse (22110021210022), we get a palindrome (44111233211144).

The spelling of 22001212001122 in words is "twenty-two trillion, one billion, two hundred twelve million, one thousand, one hundred twenty-two".