20102210012121 has 8 divisors (see below), whose sum is σ = 26802967774464. Its totient is φ = 13401462795600.

The previous prime is 20102210012107. The next prime is 20102210012177. The reversal of 20102210012121 is 12121001220102.

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

It is not a de Polignac number, because 20102210012121 - 2⁷ = 20102210011993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20102210012121.

It is not an unprimeable number, because it can be changed into a prime (20102210012821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4840600 + ... + 7977206.

It is an arithmetic number, because the mean of its divisors is an integer number (3350370971808).

Almost surely, 2^{20102210012121} is an apocalyptic number.

It is an amenable number.

20102210012121 is a deficient number, since it is larger than the sum of its proper divisors (6700757762343).

20102210012121 is a wasteful number, since it uses less digits than its factorization.

20102210012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5272911.

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

Adding to 20102210012121 its reverse (12121001220102), we get a palindrome (32223211232223).

The spelling of 20102210012121 in words is "twenty trillion, one hundred two billion, two hundred ten million, twelve thousand, one hundred twenty-one".