20021200121102 has 8 divisors (see below), whose sum is σ = 30032407855296. Its totient is φ = 10010397502672.

The previous prime is 20021200121081. The next prime is 20021200121177. The reversal of 20021200121102 is 20112100212002.

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

It is a congruent number.

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, 101155358 + ... + 101353089.

It is an arithmetic number, because the mean of its divisors is an integer number (3754050981912).

Almost surely, 2^{20021200121102} is an apocalyptic number.

20021200121102 is a deficient number, since it is larger than the sum of its proper divisors (10011207734194).

20021200121102 is a wasteful number, since it uses less digits than its factorization.

20021200121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202557882.

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

Adding to 20021200121102 its reverse (20112100212002), we get a palindrome (40133300333104).

The spelling of 20021200121102 in words is "twenty trillion, twenty-one billion, two hundred million, one hundred twenty-one thousand, one hundred two".