1020220212220 has 96 divisors (see below), whose sum is σ = 2499219043776. Its totient is φ = 345709056000.

The previous prime is 1020220212161. The next prime is 1020220212227. The reversal of 1020220212220 is 222120220201.

It is a junction number, because it is equal to n+sod(n) for n = 1020220212194 and 1020220212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020220212227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 972687 + ... + 1728166.

It is an arithmetic number, because the mean of its divisors is an integer number (26033531706).

Almost surely, 2^{1020220212220} is an apocalyptic number.

1020220212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020220212220 is an abundant number, since it is smaller than the sum of its proper divisors (1478998831556).

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

1020220212220 is a wasteful number, since it uses less digits than its factorization.

1020220212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700991 (or 2700989 counting only the distinct ones).

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

Adding to 1020220212220 its reverse (222120220201), we get a palindrome (1242340432421).

The spelling of 1020220212220 in words is "one trillion, twenty billion, two hundred twenty million, two hundred twelve thousand, two hundred twenty".