10220210211220 has 12 divisors (see below), whose sum is σ = 21462441443604. Its totient is φ = 4088084084480.

The previous prime is 10220210211199. The next prime is 10220210211223. The reversal of 10220210211220 is 2211201202201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3525126411024 + 6695083800196 = 1877532^2 + 2587486^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10220210211194 and 10220210211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220210211223) 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, 255505255261 + ... + 255505255300.

It is an arithmetic number, because the mean of its divisors is an integer number (1788536786967).

Almost surely, 2^{10220210211220} is an apocalyptic number.

10220210211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10220210211220 is an abundant number, since it is smaller than the sum of its proper divisors (11242231232384).

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

10220210211220 is a wasteful number, since it uses less digits than its factorization.

10220210211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511010510570 (or 511010510568 counting only the distinct ones).

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

Adding to 10220210211220 its reverse (2211201202201), we get a palindrome (12431411413421).

The spelling of 10220210211220 in words is "ten trillion, two hundred twenty billion, two hundred ten million, two hundred eleven thousand, two hundred twenty".