1202021222220 has 1152 divisors, whose sum is σ = 4735762536960. Its totient is φ = 240073113600.

The previous prime is 1202021222197. The next prime is 1202021222221. The reversal of 1202021222220 is 222221202021.

1202021222220 is a `hidden beast` number, since 1 + 20 + 202 + 1 + 222 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1202021222193 and 1202021222202.

It is not an unprimeable number, because it can be changed into a prime (1202021222221) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 4468480246 + ... + 4468480514.

It is an arithmetic number, because the mean of its divisors is an integer number (4110904980).

Almost surely, 2^{1202021222220} is an apocalyptic number.

1202021222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202021222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2367881268480).

1202021222220 is an abundant number, since it is smaller than the sum of its proper divisors (3533741314740).

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

1202021222220 is a wasteful number, since it uses less digits than its factorization.

1202021222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1202021222220 its reverse (222221202021), we get a palindrome (1424242424241).

It can be divided in two parts, 1202021 and 222220, that added together give a palindrome (1424241).

The spelling of 1202021222220 in words is "one trillion, two hundred two billion, twenty-one million, two hundred twenty-two thousand, two hundred twenty".