121222344004 has 12 divisors (see below), whose sum is σ = 212282352828. Its totient is φ = 60570243200.

The previous prime is 121222343999. The next prime is 121222344121. The reversal of 121222344004 is 400443222121.

It can be written as a sum of positive squares in 2 ways, for example, as 49462649604 + 71759694400 = 222402^2 + 267880^2 .

It is a super-2 number, since 2×121222344004² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121222344004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10225537 + ... + 10237384.

It is an arithmetic number, because the mean of its divisors is an integer number (17690196069).

Almost surely, 2^121222344004 is an apocalyptic number.

It is an amenable number.

121222344004 is a deficient number, since it is larger than the sum of its proper divisors (91060008824).

121222344004 is a wasteful number, since it uses less digits than its factorization.

121222344004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20464406 (or 20464404 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 121222344004 its reverse (400443222121), we get a palindrome (521665566125).

The spelling of 121222344004 in words is "one hundred twenty-one billion, two hundred twenty-two million, three hundred forty-four thousand, four".