1021001201 has 8 divisors (see below), whose sum is σ = 1116470208. Its totient is φ = 925974000.

The previous prime is 1021001171. The next prime is 1021001203.

1021001201 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021001201 - 2²⁶ = 953892337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021001203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105605 + ... + 114866.

It is an arithmetic number, because the mean of its divisors is an integer number (139558776).

Almost surely, 2^1021001201 is an apocalyptic number.

1021001201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1021001201 is a deficient number, since it is larger than the sum of its proper divisors (95469007).

1021001201 is a wasteful number, since it uses less digits than its factorization.

1021001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220903.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1021001201 is about 31953.1094105096. The cubic root of 1021001201 is about 1006.9519586094.

It can be divided in two parts, 102100 and 1201, that added together give a palindrome (103301).

The spelling of 1021001201 in words is "one billion, twenty-one million, one thousand, two hundred one".