20001200202102 has 16 divisors (see below), whose sum is σ = 45717029033472. Its totient is φ = 5714628629160.

The previous prime is 20001200202073. The next prime is 20001200202131. The reversal of 20001200202102 is 20120200210002.

It is an interprime number because it is at equal distance from previous prime (20001200202073) and next prime (20001200202131).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238109526174 + ... + 238109526257.

It is an arithmetic number, because the mean of its divisors is an integer number (2857314314592).

Almost surely, 2^{20001200202102} is an apocalyptic number.

20001200202102 is an abundant number, since it is smaller than the sum of its proper divisors (25715828831370).

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

20001200202102 is a wasteful number, since it uses less digits than its factorization.

20001200202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476219052443.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20001200202102 its reverse (20120200210002), we get a palindrome (40121400412104).

The spelling of 20001200202102 in words is "twenty trillion, one billion, two hundred million, two hundred two thousand, one hundred two".