2001022010212 has 6 divisors (see below), whose sum is σ = 3501788517878. Its totient is φ = 1000511005104.

The previous prime is 2001022010179. The next prime is 2001022010219. The reversal of 2001022010212 is 2120102201002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1795535680576 + 205486329636 = 1339976^2 + 453306^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2001022010192 and 2001022010201.

It is not an unprimeable number, because it can be changed into a prime (2001022010219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250127751273 + ... + 250127751280.

Almost surely, 2^{2001022010212} is an apocalyptic number.

It is an amenable number.

2001022010212 is a deficient number, since it is larger than the sum of its proper divisors (1500766507666).

2001022010212 is a wasteful number, since it uses less digits than its factorization.

2001022010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500255502557 (or 500255502555 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2001022010212 its reverse (2120102201002), we get a palindrome (4121124211214).

The spelling of 2001022010212 in words is "two trillion, one billion, twenty-two million, ten thousand, two hundred twelve".