1021212001201 has 24 divisors (see below), whose sum is σ = 1221675892800. Its totient is φ = 850671515232.

The previous prime is 1021212001177. The next prime is 1021212001219. The reversal of 1021212001201 is 1021002121201.

It is not a de Polignac number, because 1021212001201 - 2³³ = 1012622066609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021212001291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 798486 + ... + 1637071.

It is an arithmetic number, because the mean of its divisors is an integer number (50903162200).

Almost surely, 2^{1021212001201} is an apocalyptic number.

It is an amenable number.

1021212001201 is a deficient number, since it is larger than the sum of its proper divisors (200463891599).

1021212001201 is a wasteful number, since it uses less digits than its factorization.

1021212001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435813 (or 2435806 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1021212001201 its reverse (1021002121201), we get a palindrome (2042214122402).

The spelling of 1021212001201 in words is "one trillion, twenty-one billion, two hundred twelve million, one thousand, two hundred one".