20122121100002 has 8 divisors (see below), whose sum is σ = 30183201205212. Its totient is φ = 10061054031600.

The previous prime is 20122121099911. The next prime is 20122121100019. The reversal of 20122121100002 is 20000112122102.

It can be written as a sum of positive squares in 2 ways, for example, as 20019369438601 + 102751661401 = 4474301^2 + 320549^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20122121100002.

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, 3015752 + ... + 7024172.

Almost surely, 2^{20122121100002} is an apocalyptic number.

20122121100002 is a deficient number, since it is larger than the sum of its proper divisors (10061080105210).

20122121100002 is a wasteful number, since it uses less digits than its factorization.

20122121100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6518404.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20122121100002 its reverse (20000112122102), we get a palindrome (40122233222104).

The spelling of 20122121100002 in words is "twenty trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred thousand, two".