1202111220220 has 12 divisors (see below), whose sum is σ = 2524433562504. Its totient is φ = 480844488080.

The previous prime is 1202111220217. The next prime is 1202111220241. The reversal of 1202111220220 is 220221112021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1202111220194 and 1202111220203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30052780486 + ... + 30052780525.

It is an arithmetic number, because the mean of its divisors is an integer number (210369463542).

Almost surely, 2^{1202111220220} is an apocalyptic number.

1202111220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202111220220 is an abundant number, since it is smaller than the sum of its proper divisors (1322322342284).

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

1202111220220 is a wasteful number, since it uses less digits than its factorization.

1202111220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60105561020 (or 60105561018 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1202111220220 its reverse (220221112021), we get a palindrome (1422332332241).

It can be divided in two parts, 120211 and 1220220, that added together give a palindrome (1340431).

The spelling of 1202111220220 in words is "one trillion, two hundred two billion, one hundred eleven million, two hundred twenty thousand, two hundred twenty".