1220212222102 has 4 divisors (see below), whose sum is σ = 1830318333156. Its totient is φ = 610106111050.

The previous prime is 1220212222067. The next prime is 1220212222127. The reversal of 1220212222102 is 2012222120221.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1220212222102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305053055524 + ... + 305053055527.

It is an arithmetic number, because the mean of its divisors is an integer number (457579583289).

Almost surely, 2^{1220212222102} is an apocalyptic number.

1220212222102 is a deficient number, since it is larger than the sum of its proper divisors (610106111054).

1220212222102 is an equidigital number, since it uses as much as digits as its factorization.

1220212222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610106111053.

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

Adding to 1220212222102 its reverse (2012222120221), we get a palindrome (3232434342323).

The spelling of 1220212222102 in words is "one trillion, two hundred twenty billion, two hundred twelve million, two hundred twenty-two thousand, one hundred two".