20001402020001 has 16 divisors (see below), whose sum is σ = 27397967033024. Its totient is φ = 12969780398784.

The previous prime is 20001402019909. The next prime is 20001402020099. The reversal of 20001402020001 is 10002020410002.

It is not a de Polignac number, because 20001402020001 - 2¹³ = 20001402011809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001402021001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28133386 + ... + 28835571.

It is an arithmetic number, because the mean of its divisors is an integer number (1712372939564).

Almost surely, 2^{20001402020001} is an apocalyptic number.

It is an amenable number.

20001402020001 is a deficient number, since it is larger than the sum of its proper divisors (7396565013023).

20001402020001 is a wasteful number, since it uses less digits than its factorization.

20001402020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56972160.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20001402020001 its reverse (10002020410002), we get a palindrome (30003422430003).

The spelling of 20001402020001 in words is "twenty trillion, one billion, four hundred two million, twenty thousand, one".