20210012121102 has 16 divisors (see below), whose sum is σ = 40490812382592. Its totient is φ = 6724872683640.

The previous prime is 20210012121067. The next prime is 20210012121107. The reversal of 20210012121102 is 20112121001202.

It is a super-2 number, since 2×20210012121102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210012121107) 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, 2949502138 + ... + 2949508989.

It is an arithmetic number, because the mean of its divisors is an integer number (2530675773912).

Almost surely, 2^{20210012121102} is an apocalyptic number.

20210012121102 is an abundant number, since it is smaller than the sum of its proper divisors (20280800261490).

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

20210012121102 is a wasteful number, since it uses less digits than its factorization.

20210012121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5899011703.

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

Adding to 20210012121102 its reverse (20112121001202), we get a palindrome (40322133122304).

The spelling of 20210012121102 in words is "twenty trillion, two hundred ten billion, twelve million, one hundred twenty-one thousand, one hundred two".