20112002121002 has 24 divisors (see below), whose sum is σ = 33161074776900. Its totient is φ = 9141487351040.

The previous prime is 20112002120891. The next prime is 20112002121023. The reversal of 20112002121002 is 20012120021102.

It can be written as a sum of positive squares in 2 ways, for example, as 19803042903721 + 308959217281 = 4450061^2 + 555841^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5235524 + ... + 8224032.

Almost surely, 2^{20112002121002} is an apocalyptic number.

20112002121002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20112002121002 is a deficient number, since it is larger than the sum of its proper divisors (13049072655898).

20112002121002 is a wasteful number, since it uses less digits than its factorization.

20112002121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3016342 (or 3016331 counting only the distinct ones).

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

Adding to 20112002121002 its reverse (20012120021102), we get a palindrome (40124122142104).

The spelling of 20112002121002 in words is "twenty trillion, one hundred twelve billion, two million, one hundred twenty-one thousand, two".