210021220100010 has 96 divisors (see below), whose sum is σ = 554128569179136. Its totient is φ = 50906045449600.

The previous prime is 210021220099981. The next prime is 210021220100011. The reversal of 210021220100010 is 10001022120012.

It is not an unprimeable number, because it can be changed into a prime (210021220100011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17932087 + ... + 27232373.

It is an arithmetic number, because the mean of its divisors is an integer number (5772172595616).

Almost surely, 2^{210021220100010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210021220100010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277064284589568).

210021220100010 is an abundant number, since it is smaller than the sum of its proper divisors (344107349079126).

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

210021220100010 is a wasteful number, since it uses less digits than its factorization.

210021220100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9306540 (or 9306529 counting only the distinct ones).

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

Adding to 210021220100010 its reverse (10001022120012), we get a palindrome (220022242220022).

It can be divided in two parts, 2100212 and 20100010, that added together give a palindrome (22200222).

The spelling of 210021220100010 in words is "two hundred ten trillion, twenty-one billion, two hundred twenty million, one hundred thousand, ten".