221052002010 has 32 divisors (see below), whose sum is σ = 606314063232. Its totient is φ = 50526171840.

The previous prime is 221052001981. The next prime is 221052002011. The reversal of 221052002010 is 10200250122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (221052002011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526314081 + ... + 526314500.

It is an arithmetic number, because the mean of its divisors is an integer number (18947314476).

Almost surely, 2^221052002010 is an apocalyptic number.

221052002010 is an abundant number, since it is smaller than the sum of its proper divisors (385262061222).

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

221052002010 is a wasteful number, since it uses less digits than its factorization.

221052002010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052628598.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 221052002010 its reverse (10200250122), we get a palindrome (231252252132).

The spelling of 221052002010 in words is "two hundred twenty-one billion, fifty-two million, two thousand, ten".