1020212220220 has 48 divisors (see below), whose sum is σ = 2212704700416. Its totient is φ = 394715880000.

The previous prime is 1020212220217. The next prime is 1020212220227. The reversal of 1020212220220 is 220222120201.

It is a junction number, because it is equal to n+sod(n) for n = 1020212220194 and 1020212220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020212220227) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 771145 + ... + 1623295.

It is an arithmetic number, because the mean of its divisors is an integer number (46098014592).

Almost surely, 2^{1020212220220} is an apocalyptic number.

1020212220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020212220220 is an abundant number, since it is smaller than the sum of its proper divisors (1192492480196).

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

1020212220220 is a wasteful number, since it uses less digits than its factorization.

1020212220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854122 (or 854120 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1020212220220 its reverse (220222120201), we get a palindrome (1240434340421).

The spelling of 1020212220220 in words is "one trillion, twenty billion, two hundred twelve million, two hundred twenty thousand, two hundred twenty".