1220212222210 has 8 divisors (see below), whose sum is σ = 2196381999996. Its totient is φ = 488084888880.

The previous prime is 1220212222193. The next prime is 1220212222213. The reversal of 1220212222210 is 122222120221.

It can be written as a sum of positive squares in 2 ways, for example, as 1086666559489 + 133545662721 = 1042433^2 + 365439^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1220212222213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61010611101 + ... + 61010611120.

Almost surely, 2^{1220212222210} is an apocalyptic number.

1220212222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220212222210 is a deficient number, since it is larger than the sum of its proper divisors (976169777786).

1220212222210 is a wasteful number, since it uses less digits than its factorization.

1220212222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122021222228.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1220212222210 its reverse (122222120221), we get a palindrome (1342434342431).

The spelling of 1220212222210 in words is "one trillion, two hundred twenty billion, two hundred twelve million, two hundred twenty-two thousand, two hundred ten".