20210102220001 has 4 divisors (see below), whose sum is σ = 21398931762372. Its totient is φ = 19021272677632.

The previous prime is 20210102219849. The next prime is 20210102220101. The reversal of 20210102220001 is 10002220101202.

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 15095742584976 + 5114359635025 = 3885324^2 + 2261495^2 .

It is a cyclic number.

It is not a de Polignac number, because 20210102220001 - 2¹³ = 20210102211809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20210102220101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594414771160 + ... + 594414771193.

It is an arithmetic number, because the mean of its divisors is an integer number (5349732940593).

Almost surely, 2^{20210102220001} is an apocalyptic number.

It is an amenable number.

20210102220001 is a deficient number, since it is larger than the sum of its proper divisors (1188829542371).

20210102220001 is a wasteful number, since it uses less digits than its factorization.

20210102220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188829542370.

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

Adding to 20210102220001 its reverse (10002220101202), we get a palindrome (30212322321203).

The spelling of 20210102220001 in words is "twenty trillion, two hundred ten billion, one hundred two million, two hundred twenty thousand, one".