1220212220222 has 8 divisors (see below), whose sum is σ = 1830361861200. Its totient is φ = 610091599824.

The previous prime is 1220212220209. The next prime is 1220212220237. The reversal of 1220212220222 is 2220222120221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1220212220194 and 1220212220203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7149722 + ... + 7318397.

It is an arithmetic number, because the mean of its divisors is an integer number (228795232650).

Almost surely, 2^{1220212220222} is an apocalyptic number.

1220212220222 is a deficient number, since it is larger than the sum of its proper divisors (610149640978).

1220212220222 is a wasteful number, since it uses less digits than its factorization.

1220212220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14510290.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1220212220222 its reverse (2220222120221), we get a palindrome (3440434340443).

The spelling of 1220212220222 in words is "one trillion, two hundred twenty billion, two hundred twelve million, two hundred twenty thousand, two hundred twenty-two".