1220212312230 has 64 divisors (see below), whose sum is σ = 2991029898240. Its totient is φ = 318444225024.

The previous prime is 1220212312223. The next prime is 1220212312237. The reversal of 1220212312230 is 322132120221.

It is an interprime number because it is at equal distance from previous prime (1220212312223) and next prime (1220212312237).

It is a junction number, because it is equal to n+sod(n) for n = 1220212312197 and 1220212312206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220212312237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31182337 + ... + 31221443.

It is an arithmetic number, because the mean of its divisors is an integer number (46734842160).

Almost surely, 2^{1220212312230} is an apocalyptic number.

1220212312230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220212312230 is an abundant number, since it is smaller than the sum of its proper divisors (1770817586010).

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

1220212312230 is a wasteful number, since it uses less digits than its factorization.

1220212312230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61293.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1220212312230 its reverse (322132120221), we get a palindrome (1542344432451).

The spelling of 1220212312230 in words is "one trillion, two hundred twenty billion, two hundred twelve million, three hundred twelve thousand, two hundred thirty".