10201220221210 has 16 divisors (see below), whose sum is σ = 18362287981800. Its totient is φ = 4080467736576.

The previous prime is 10201220221193. The next prime is 10201220221219. The reversal of 10201220221210 is 1212202210201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5019136757649 + 5182083463561 = 2240343^2 + 2276419^2 .

It is not an unprimeable number, because it can be changed into a prime (10201220221219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348555 + ... + 4530334.

Almost surely, 2^{10201220221210} is an apocalyptic number.

10201220221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10201220221210 is a deficient number, since it is larger than the sum of its proper divisors (8161067760590).

10201220221210 is a wasteful number, since it uses less digits than its factorization.

10201220221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5087985.

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

Adding to 10201220221210 its reverse (1212202210201), we get a palindrome (11413422431411).

The spelling of 10201220221210 in words is "ten trillion, two hundred one billion, two hundred twenty million, two hundred twenty-one thousand, two hundred ten".