1021244421201 has 64 divisors (see below), whose sum is σ = 1524093542400. Its totient is φ = 605419266816.

The previous prime is 1021244421107. The next prime is 1021244421209.

It is a happy number.

1021244421201 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1021244421201 - 2¹⁰ = 1021244420177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021244421209) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 81154356 + ... + 81166938.

It is an arithmetic number, because the mean of its divisors is an integer number (23813961600).

Almost surely, 2^{1021244421201} is an apocalyptic number.

It is an amenable number.

1021244421201 is a deficient number, since it is larger than the sum of its proper divisors (502849121199).

1021244421201 is a wasteful number, since it uses less digits than its factorization.

1021244421201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13998.

The product of its (nonzero) digits is 1024, while the sum is 24.

The spelling of 1021244421201 in words is "one trillion, twenty-one billion, two hundred forty-four million, four hundred twenty-one thousand, two hundred one".