10221202221210 has 128 divisors (see below), whose sum is σ = 27356540106240. Its totient is φ = 2715662702592.

The previous prime is 10221202221199. The next prime is 10221202221221. The reversal of 10221202221210 is 1212220212201.

It is a happy number.

10221202221210 is a `hidden beast` number, since 1 + 0 + 221 + 202 + 221 + 21 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (10221202221199) and next prime (10221202221221).

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 172605427 + ... + 172664633.

It is an arithmetic number, because the mean of its divisors is an integer number (213722969580).

Almost surely, 2^{10221202221210} is an apocalyptic number.

10221202221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10221202221210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13678270053120).

10221202221210 is an abundant number, since it is smaller than the sum of its proper divisors (17135337885030).

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

10221202221210 is a wasteful number, since it uses less digits than its factorization.

10221202221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61557 (or 61551 counting only the distinct ones).

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

Adding to 10221202221210 its reverse (1212220212201), we get a palindrome (11433422433411).

The spelling of 10221202221210 in words is "ten trillion, two hundred twenty-one billion, two hundred two million, two hundred twenty-one thousand, two hundred ten".