2001101211210 has 64 divisors (see below), whose sum is σ = 4922351077248. Its totient is φ = 520366581504.

The previous prime is 2001101211191. The next prime is 2001101211217. The reversal of 2001101211210 is 121121011002.

It is a super-2 number, since 2×2001101211210² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2001101211217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 474517 + ... + 2056056.

It is an arithmetic number, because the mean of its divisors is an integer number (76911735582).

Almost surely, 2^{2001101211210} is an apocalyptic number.

2001101211210 is an abundant number, since it is smaller than the sum of its proper divisors (2921249866038).

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

2001101211210 is a wasteful number, since it uses less digits than its factorization.

2001101211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531239.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2001101211210 its reverse (121121011002), we get a palindrome (2122222222212).

The spelling of 2001101211210 in words is "two trillion, one billion, one hundred one million, two hundred eleven thousand, two hundred ten".