20001002121122 has 8 divisors (see below), whose sum is σ = 32728912561872. Its totient is φ = 9091364600500.

The previous prime is 20001002121119. The next prime is 20001002121131. The reversal of 20001002121122 is 22112120010002.

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

It is a junction number, because it is equal to n+sod(n) for n = 20001002121097 and 20001002121106.

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, 454568230004 + ... + 454568230047.

It is an arithmetic number, because the mean of its divisors is an integer number (4091114070234).

Almost surely, 2^{20001002121122} is an apocalyptic number.

20001002121122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20001002121122 is a deficient number, since it is larger than the sum of its proper divisors (12727910440750).

20001002121122 is a wasteful number, since it uses less digits than its factorization.

20001002121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909136460064.

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

Adding to 20001002121122 its reverse (22112120010002), we get a palindrome (42113122131124).

The spelling of 20001002121122 in words is "twenty trillion, one billion, two million, one hundred twenty-one thousand, one hundred twenty-two".