1213454422220 has 24 divisors (see below), whose sum is σ = 2573484531408. Its totient is φ = 480576008000.

The previous prime is 1213454422207. The next prime is 1213454422241. The reversal of 1213454422220 is 222244543121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300357986 + ... + 300362025.

It is an arithmetic number, because the mean of its divisors is an integer number (107228522142).

Almost surely, 2^{1213454422220} is an apocalyptic number.

1213454422220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213454422220 is an abundant number, since it is smaller than the sum of its proper divisors (1360030109188).

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

1213454422220 is a wasteful number, since it uses less digits than its factorization.

1213454422220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600720121 (or 600720119 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 1213454422220 its reverse (222244543121), we get a palindrome (1435698965341).

The spelling of 1213454422220 in words is "one trillion, two hundred thirteen billion, four hundred fifty-four million, four hundred twenty-two thousand, two hundred twenty".