2001011201210 has 24 divisors (see below), whose sum is σ = 4189872434580. Its totient is φ = 686060983104.

The previous prime is 2001011201183. The next prime is 2001011201219. The reversal of 2001011201210 is 121021101002.

It can be written as a sum of positive squares in 2 ways, for example, as 1925519792161 + 75491409049 = 1387631^2 + 274757^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2001011201191 and 2001011201200.

It is not an unprimeable number, because it can be changed into a prime (2001011201219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2041847675 + ... + 2041848654.

Almost surely, 2^{2001011201210} is an apocalyptic number.

2001011201210 is an abundant number, since it is smaller than the sum of its proper divisors (2188861233370).

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

2001011201210 is a wasteful number, since it uses less digits than its factorization.

2001011201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4083696350 (or 4083696343 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2001011201210 its reverse (121021101002), we get a palindrome (2122032302212).

The spelling of 2001011201210 in words is "two trillion, one billion, eleven million, two hundred one thousand, two hundred ten".