210210111201020 has 48 divisors (see below), whose sum is σ = 504505243730880. Its totient is φ = 72071898576384.

The previous prime is 210210111200983. The next prime is 210210111201029. The reversal of 210210111201020 is 20102111012012.

It is a super-2 number, since 2×210210111201020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 210210111200986 and 210210111201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210210111201029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92907422 + ... + 95143098.

It is an arithmetic number, because the mean of its divisors is an integer number (10510525911060).

Almost surely, 2^{210210111201020} is an apocalyptic number.

210210111201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210210111201020 is an abundant number, since it is smaller than the sum of its proper divisors (294295132529860).

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

210210111201020 is a wasteful number, since it uses less digits than its factorization.

210210111201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907302 (or 2907300 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210210111201020 its reverse (20102111012012), we get a palindrome (230312222213032).

The spelling of 210210111201020 in words is "two hundred ten trillion, two hundred ten billion, one hundred eleven million, two hundred one thousand, twenty".