1220212220102 has 8 divisors (see below), whose sum is σ = 1832391173496. Its totient is φ = 609415162272.

The previous prime is 1220212220057. The next prime is 1220212220107. The reversal of 1220212220102 is 2010222120221.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220212220107) 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, 345471683 + ... + 345475214.

It is an arithmetic number, because the mean of its divisors is an integer number (229048896687).

Almost surely, 2^{1220212220102} is an apocalyptic number.

1220212220102 is a deficient number, since it is larger than the sum of its proper divisors (612178953394).

1220212220102 is an equidigital number, since it uses as much as digits as its factorization.

1220212220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690947782.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1220212220102 its reverse (2010222120221), we get a palindrome (3230434340323).

The spelling of 1220212220102 in words is "one trillion, two hundred twenty billion, two hundred twelve million, two hundred twenty thousand, one hundred two".