20012220121102 has 16 divisors (see below), whose sum is σ = 33065203946112. Its totient is φ = 9008148508920.

The previous prime is 20012220121007. The next prime is 20012220121121. The reversal of 20012220121102 is 20112102221002.

It is a happy number.

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, 4415756808 + ... + 4415761339.

It is an arithmetic number, because the mean of its divisors is an integer number (2066575246632).

Almost surely, 2^{20012220121102} is an apocalyptic number.

20012220121102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20012220121102 is a deficient number, since it is larger than the sum of its proper divisors (13052983825010).

20012220121102 is a wasteful number, since it uses less digits than its factorization.

20012220121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8831518263.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20012220121102 its reverse (20112102221002), we get a palindrome (40124322342104).

The spelling of 20012220121102 in words is "twenty trillion, twelve billion, two hundred twenty million, one hundred twenty-one thousand, one hundred two".