303211001212020 has 288 divisors, whose sum is σ = 1010589772308480. Its totient is φ = 72977397600000.

The previous prime is 303211001211997. The next prime is 303211001212033. The reversal of 303211001212020 is 20212100112303.

303211001212020 is a `hidden beast` number, since 30 + 321 + 100 + 1 + 212 + 0 + 2 + 0 = 666.

It is a super-2 number, since 2×303211001212020² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 303211001211984 and 303211001212002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 153579901 + ... + 155541659.

It is an arithmetic number, because the mean of its divisors is an integer number (3508992264960).

Almost surely, 2^{303211001212020} is an apocalyptic number.

303211001212020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303211001212020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (505294886154240).

303211001212020 is an abundant number, since it is smaller than the sum of its proper divisors (707378771096460).

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

303211001212020 is a wasteful number, since it uses less digits than its factorization.

303211001212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962347 (or 1962342 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 303211001212020 its reverse (20212100112303), we get a palindrome (323423101324323).

The spelling of 303211001212020 in words is "three hundred three trillion, two hundred eleven billion, one million, two hundred twelve thousand, twenty".