2001010221210 has 384 divisors, whose sum is σ = 6740562334464. Its totient is φ = 373435453440.

The previous prime is 2001010221157. The next prime is 2001010221277. The reversal of 2001010221210 is 121220101002.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 7649134 + ... + 7906406.

It is an arithmetic number, because the mean of its divisors is an integer number (17553547746).

Almost surely, 2^{2001010221210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001010221210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3370281167232).

2001010221210 is an abundant number, since it is smaller than the sum of its proper divisors (4739552113254).

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

2001010221210 is a wasteful number, since it uses less digits than its factorization.

2001010221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257358 (or 257351 counting only the distinct ones).

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

Adding to 2001010221210 its reverse (121220101002), we get a palindrome (2122230322212).

The spelling of 2001010221210 in words is "two trillion, one billion, ten million, two hundred twenty-one thousand, two hundred ten".