210210121101020 has 24 divisors (see below), whose sum is σ = 455681294775168. Its totient is φ = 81371659780800.

The previous prime is 210210121101017. The next prime is 210210121101059. The reversal of 210210121101020 is 20101121012012.

It is a junction number, because it is equal to n+sod(n) for n = 210210121100986 and 210210121101004.

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, 169524290591 + ... + 169524291830.

It is an arithmetic number, because the mean of its divisors is an integer number (18986720615632).

Almost surely, 2^{210210121101020} is an apocalyptic number.

210210121101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210210121101020 is an abundant number, since it is smaller than the sum of its proper divisors (245471173674148).

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

210210121101020 is a wasteful number, since it uses less digits than its factorization.

210210121101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339048582461 (or 339048582459 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210210121101020 its reverse (20101121012012), we get a palindrome (230311242113032).

The spelling of 210210121101020 in words is "two hundred ten trillion, two hundred ten billion, one hundred twenty-one million, one hundred one thousand, twenty".