12202221012210 has 48 divisors (see below), whose sum is σ = 31729397932440. Its totient is φ = 3253553982720.

The previous prime is 12202221012209. The next prime is 12202221012221. The reversal of 12202221012210 is 1221012220221.

It is a happy number.

12202221012210 is a `hidden beast` number, since 1 + 220 + 2 + 221 + 0 + 1 + 221 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8501533916121 + 3700687096089 = 2915739^2 + 1923717^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6949225 + ... + 8526204.

Almost surely, 2^{12202221012210} is an apocalyptic number.

12202221012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12202221012210 is an abundant number, since it is smaller than the sum of its proper divisors (19527176920230).

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

12202221012210 is a wasteful number, since it uses less digits than its factorization.

12202221012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15484203 (or 15484200 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12202221012210 its reverse (1221012220221), we get a palindrome (13423233232431).

The spelling of 12202221012210 in words is "twelve trillion, two hundred two billion, two hundred twenty-one million, twelve thousand, two hundred ten".