1201002222220 has 24 divisors (see below), whose sum is σ = 2563450647408. Its totient is φ = 472525464000.

The previous prime is 1201002222209. The next prime is 1201002222227. The reversal of 1201002222220 is 222222001021.

It is a junction number, because it is equal to n+sod(n) for n = 1201002222194 and 1201002222203.

It is not an unprimeable number, because it can be changed into a prime (1201002222227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492212806 + ... + 492215245.

It is an arithmetic number, because the mean of its divisors is an integer number (106810443642).

Almost surely, 2^{1201002222220} is an apocalyptic number.

1201002222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201002222220 is an abundant number, since it is smaller than the sum of its proper divisors (1362448425188).

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

1201002222220 is a wasteful number, since it uses less digits than its factorization.

1201002222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984428121 (or 984428119 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1201002222220 its reverse (222222001021), we get a palindrome (1423224223241).

The spelling of 1201002222220 in words is "one trillion, two hundred one billion, two million, two hundred twenty-two thousand, two hundred twenty".