1022020203312 has 60 divisors (see below), whose sum is σ = 2929998994104. Its totient is φ = 332364291840.

The previous prime is 1022020203307. The next prime is 1022020203317. The reversal of 1022020203312 is 2133020202201.

It is an interprime number because it is at equal distance from previous prime (1022020203307) and next prime (1022020203317).

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

It is not an unprimeable number, because it can be changed into a prime (1022020203317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86547298 + ... + 86559105.

Almost surely, 2^{1022020203312} is an apocalyptic number.

1022020203312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022020203312 is an abundant number, since it is smaller than the sum of its proper divisors (1907978790792).

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

1022020203312 is a wasteful number, since it uses less digits than its factorization.

1022020203312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173106458 (or 173106449 counting only the distinct ones).

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

Adding to 1022020203312 its reverse (2133020202201), we get a palindrome (3155040405513).

The spelling of 1022020203312 in words is "one trillion, twenty-two billion, twenty million, two hundred three thousand, three hundred twelve".