20020012111001 has 16 divisors (see below), whose sum is σ = 23120380222464. Its totient is φ = 16979804319744.

The previous prime is 20020012110953. The next prime is 20020012111013. The reversal of 20020012111001 is 10011121002002.

It is not a de Polignac number, because 20020012111001 - 2³⁸ = 19745134204057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20020012111091) 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, 637976 + ... + 6359798.

It is an arithmetic number, because the mean of its divisors is an integer number (1445023763904).

Almost surely, 2^{20020012111001} is an apocalyptic number.

It is an amenable number.

20020012111001 is a deficient number, since it is larger than the sum of its proper divisors (3100368111463).

20020012111001 is an equidigital number, since it uses as much as digits as its factorization.

20020012111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5727080.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20020012111001 its reverse (10011121002002), we get a palindrome (30031133113003).

The spelling of 20020012111001 in words is "twenty trillion, twenty billion, twelve million, one hundred eleven thousand, one".