1021001201012 has 24 divisors (see below), whose sum is σ = 1960500134376. Its totient is φ = 462340165248.

The previous prime is 1021001200979. The next prime is 1021001201021. The reversal of 1021001201012 is 2101021001201.

It can be written as a sum of positive squares in 4 ways, for example, as 3880542436 + 1017120658576 = 62294^2 + 1008524^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1021001200984 and 1021001201002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185229683 + ... + 185235194.

It is an arithmetic number, because the mean of its divisors is an integer number (81687505599).

Almost surely, 2^{1021001201012} is an apocalyptic number.

It is an amenable number.

1021001201012 is a deficient number, since it is larger than the sum of its proper divisors (939498933364).

1021001201012 is a wasteful number, since it uses less digits than its factorization.

1021001201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370464947 (or 370464945 counting only the distinct ones).

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

Adding to 1021001201012 its reverse (2101021001201), we get a palindrome (3122022202213).

The spelling of 1021001201012 in words is "one trillion, twenty-one billion, one million, two hundred one thousand, twelve".