210020121102 has 32 divisors (see below), whose sum is σ = 458247807360. Its totient is φ = 63639393120.

The previous prime is 210020121013. The next prime is 210020121131. The reversal of 210020121102 is 201121020012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1568049 + ... + 1696707.

It is an arithmetic number, because the mean of its divisors is an integer number (14320243980).

Almost surely, 2^210020121102 is an apocalyptic number.

210020121102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210020121102 is an abundant number, since it is smaller than the sum of its proper divisors (248227686258).

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

210020121102 is a wasteful number, since it uses less digits than its factorization.

210020121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153408.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210020121102 its reverse (201121020012), we get a palindrome (411141141114).

The spelling of 210020121102 in words is "two hundred ten billion, twenty million, one hundred twenty-one thousand, one hundred two".