1223202301020 has 576 divisors, whose sum is σ = 4547607128064. Its totient is φ = 260065935360.

The previous prime is 1223202301007. The next prime is 1223202301037. The reversal of 1223202301020 is 201032023221.

1223202301020 is a `hidden beast` number, since 1 + 22 + 320 + 2 + 301 + 0 + 20 = 666.

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 = 1223202300984 and 1223202301002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 300317704 + ... + 300321776.

It is an arithmetic number, because the mean of its divisors is an integer number (7895151264).

Almost surely, 2^{1223202301020} is an apocalyptic number.

1223202301020 is a gapful number since it is divisible by the number (10) 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 1223202301020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2273803564032).

1223202301020 is an abundant number, since it is smaller than the sum of its proper divisors (3324404827044).

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

1223202301020 is a wasteful number, since it uses less digits than its factorization.

1223202301020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402 (or 4397 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1223202301020 its reverse (201032023221), we get a palindrome (1424234324241).

The spelling of 1223202301020 in words is "one trillion, two hundred twenty-three billion, two hundred two million, three hundred one thousand, twenty".