20110212020 has 24 divisors (see below), whose sum is σ = 42251241984. Its totient is φ = 8040314016.

The previous prime is 20110212011. The next prime is 20110212043. The reversal of 20110212020 is 2021201102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20110211992 and 20110212010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191744 + ... + 277463.

It is an arithmetic number, because the mean of its divisors is an integer number (1760468416).

Almost surely, 2^20110212020 is an apocalyptic number.

20110212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110212020 is an abundant number, since it is smaller than the sum of its proper divisors (22141029964).

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

20110212020 is a wasteful number, since it uses less digits than its factorization.

20110212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471359 (or 471357 counting only the distinct ones).

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

Adding to 20110212020 its reverse (2021201102), we get a palindrome (22131413122).

The spelling of 20110212020 in words is "twenty billion, one hundred ten million, two hundred twelve thousand, twenty".