1223101120220 has 48 divisors (see below), whose sum is σ = 2935852190208. Its totient is φ = 419290455360.

The previous prime is 1223101120207. The next prime is 1223101120243. The reversal of 1223101120220 is 220211013221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403769 + ... + 1615311.

It is an arithmetic number, because the mean of its divisors is an integer number (61163587296).

Almost surely, 2^{1223101120220} is an apocalyptic number.

1223101120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223101120220 is an abundant number, since it is smaller than the sum of its proper divisors (1712751069988).

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

1223101120220 is a wasteful number, since it uses less digits than its factorization.

1223101120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218770 (or 1218768 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1223101120220 its reverse (220211013221), we get a palindrome (1443312133441).

The spelling of 1223101120220 in words is "one trillion, two hundred twenty-three billion, one hundred one million, one hundred twenty thousand, two hundred twenty".