2021222010001 has 4 divisors (see below), whose sum is σ = 2140117422372. Its totient is φ = 1902326597632.

The previous prime is 2021222009951. The next prime is 2021222010013. The reversal of 2021222010001 is 1000102221202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1861521869376 + 159700140625 = 1364376^2 + 399625^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021222010001 - 2²³ = 2021213621393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021222010601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59447706160 + ... + 59447706193.

It is an arithmetic number, because the mean of its divisors is an integer number (535029355593).

Almost surely, 2^{2021222010001} is an apocalyptic number.

It is an amenable number.

2021222010001 is a deficient number, since it is larger than the sum of its proper divisors (118895412371).

2021222010001 is a wasteful number, since it uses less digits than its factorization.

2021222010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118895412370.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2021222010001 its reverse (1000102221202), we get a palindrome (3021324231203).

The spelling of 2021222010001 in words is "two trillion, twenty-one billion, two hundred twenty-two million, ten thousand, one".