210211312020 has 24 divisors (see below), whose sum is σ = 588591673824. Its totient is φ = 56056349856.

The previous prime is 210211311991. The next prime is 210211312021. The reversal of 210211312020 is 20213112012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210211312021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1751760874 + ... + 1751760993.

It is an arithmetic number, because the mean of its divisors is an integer number (24524653076).

Almost surely, 2^210211312020 is an apocalyptic number.

210211312020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210211312020 is an abundant number, since it is smaller than the sum of its proper divisors (378380361804).

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

210211312020 is a wasteful number, since it uses less digits than its factorization.

210211312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503521879 (or 3503521877 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 210211312020 its reverse (20213112012), we get a palindrome (230424424032).

The spelling of 210211312020 in words is "two hundred ten billion, two hundred eleven million, three hundred twelve thousand, twenty".