210100220121030 has 32 divisors (see below), whose sum is σ = 504289536760800. Its totient is φ = 56021279980032.

The previous prime is 210100220120977. The next prime is 210100220121031. The reversal of 210100220121030 is 30121022001012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210100220121031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340022785 + ... + 340640124.

It is an arithmetic number, because the mean of its divisors is an integer number (15759048023775).

Almost surely, 2^{210100220121030} is an apocalyptic number.

210100220121030 is an abundant number, since it is smaller than the sum of its proper divisors (294189316639770).

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

210100220121030 is a wasteful number, since it uses less digits than its factorization.

210100220121030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680673208.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 210100220121030 its reverse (30121022001012), we get a palindrome (240221242122042).

The spelling of 210100220121030 in words is "two hundred ten trillion, one hundred billion, two hundred twenty million, one hundred twenty-one thousand, thirty".