1021223133201 has 16 divisors (see below), whose sum is σ = 1365584261184. Its totient is φ = 678841473024.

The previous prime is 1021223133131. The next prime is 1021223133241. The reversal of 1021223133201 is 1023313221201.

It is not a de Polignac number, because 1021223133201 - 2¹³ = 1021223125009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021223133241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1139266 + ... + 1827668.

It is an arithmetic number, because the mean of its divisors is an integer number (85349016324).

Almost surely, 2^{1021223133201} is an apocalyptic number.

It is an amenable number.

1021223133201 is a deficient number, since it is larger than the sum of its proper divisors (344361127983).

1021223133201 is an equidigital number, since it uses as much as digits as its factorization.

1021223133201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689840.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1021223133201 its reverse (1023313221201), we get a palindrome (2044536354402).

It can be divided in two parts, 102122 and 3133201, that added together give a palindrome (3235323).

The spelling of 1021223133201 in words is "one trillion, twenty-one billion, two hundred twenty-three million, one hundred thirty-three thousand, two hundred one".