20002121211102 has 64 divisors (see below), whose sum is σ = 41105148537600. Its totient is φ = 6486250060800.

The previous prime is 20002121211049. The next prime is 20002121211119. The reversal of 20002121211102 is 20111212120002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 690213649 + ... + 690242627.

It is an arithmetic number, because the mean of its divisors is an integer number (642267945900).

Almost surely, 2^{20002121211102} is an apocalyptic number.

20002121211102 is an abundant number, since it is smaller than the sum of its proper divisors (21103027326498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20002121211102 is a wasteful number, since it uses less digits than its factorization.

20002121211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49241.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20002121211102 its reverse (20111212120002), we get a palindrome (40113333331104).

The spelling of 20002121211102 in words is "twenty trillion, two billion, one hundred twenty-one million, two hundred eleven thousand, one hundred two".