20002120121102 has 32 divisors (see below), whose sum is σ = 35920749542400. Its totient is φ = 8171970494688.

The previous prime is 20002120121089. The next prime is 20002120121117. The reversal of 20002120121102 is 20112102120002.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311779988 + ... + 311844135.

It is an arithmetic number, because the mean of its divisors is an integer number (1122523423200).

Almost surely, 2^{20002120121102} is an apocalyptic number.

20002120121102 is a deficient number, since it is larger than the sum of its proper divisors (15918629421298).

20002120121102 is a wasteful number, since it uses less digits than its factorization.

20002120121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623624240.

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

Adding to 20002120121102 its reverse (20112102120002), we get a palindrome (40114222241104).

The spelling of 20002120121102 in words is "twenty trillion, two billion, one hundred twenty million, one hundred twenty-one thousand, one hundred two".