1021120212201 has 16 divisors (see below), whose sum is σ = 1399994021568. Its totient is φ = 661541428800.

The previous prime is 1021120212187. The next prime is 1021120212251. The reversal of 1021120212201 is 1022120211201.

It is not a de Polignac number, because 1021120212201 - 2¹⁸ = 1021119950057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021120212251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5511355 + ... + 5693616.

It is an arithmetic number, because the mean of its divisors is an integer number (87499626348).

Almost surely, 2^{1021120212201} is an apocalyptic number.

It is an amenable number.

1021120212201 is a deficient number, since it is larger than the sum of its proper divisors (378873809367).

1021120212201 is a wasteful number, since it uses less digits than its factorization.

1021120212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11205832.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1021120212201 its reverse (1022120211201), we get a palindrome (2043240423402).

It can be divided in two parts, 1021120 and 212201, that added together give a palindrome (1233321).

The spelling of 1021120212201 in words is "one trillion, twenty-one billion, one hundred twenty million, two hundred twelve thousand, two hundred one".