1223220203310 has 32 divisors (see below), whose sum is σ = 3355118272512. Its totient is φ = 279593189280.

The previous prime is 1223220203287. The next prime is 1223220203327. The reversal of 1223220203310 is 133020223221.

It is a happy number.

It is a super-2 number, since 2×1223220203310² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 2912428846 + ... + 2912429265.

It is an arithmetic number, because the mean of its divisors is an integer number (104847446016).

Almost surely, 2^{1223220203310} is an apocalyptic number.

1223220203310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223220203310 is an abundant number, since it is smaller than the sum of its proper divisors (2131898069202).

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

1223220203310 is a wasteful number, since it uses less digits than its factorization.

1223220203310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5824858128.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1223220203310 its reverse (133020223221), we get a palindrome (1356240426531).

The spelling of 1223220203310 in words is "one trillion, two hundred twenty-three billion, two hundred twenty million, two hundred three thousand, three hundred ten".