10020001212020 has 48 divisors (see below), whose sum is σ = 21308922243840. Its totient is φ = 3957161330304.

The previous prime is 10020001211989. The next prime is 10020001212029. The reversal of 10020001212020 is 2021210002001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10020001211992 and 10020001212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020001212029) 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, 90062867 + ... + 90174053.

It is an arithmetic number, because the mean of its divisors is an integer number (443935880080).

Almost surely, 2^{10020001212020} is an apocalyptic number.

10020001212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020001212020 is an abundant number, since it is smaller than the sum of its proper divisors (11288921031820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10020001212020 is a wasteful number, since it uses less digits than its factorization.

10020001212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168312 (or 168310 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10020001212020 its reverse (2021210002001), we get a palindrome (12041211214021).

The spelling of 10020001212020 in words is "ten trillion, twenty billion, one million, two hundred twelve thousand, twenty".