2021102023201 has 8 divisors (see below), whose sum is σ = 2031510101544. Its totient is φ = 2010695447040.

The previous prime is 2021102023181. The next prime is 2021102023223. The reversal of 2021102023201 is 1023202011202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 769478085601 + 1251623937600 = 877199^2 + 1118760^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021102023201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021102023901) 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, 2373951 + ... + 3110923.

It is an arithmetic number, because the mean of its divisors is an integer number (253938762693).

Almost surely, 2^{2021102023201} is an apocalyptic number.

It is an amenable number.

2021102023201 is a deficient number, since it is larger than the sum of its proper divisors (10408078343).

2021102023201 is a wasteful number, since it uses less digits than its factorization.

2021102023201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751091.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2021102023201 its reverse (1023202011202), we get a palindrome (3044304034403).

The spelling of 2021102023201 in words is "two trillion, twenty-one billion, one hundred two million, twenty-three thousand, two hundred one".