221020200222210 has 96 divisors (see below), whose sum is σ = 582766661093760. Its totient is φ = 58106558764800.

The previous prime is 221020200222163. The next prime is 221020200222251. The reversal of 221020200222210 is 12222002020122.

221020200222210 is a `hidden beast` number, since 2 + 2 + 10 + 20 + 200 + 222 + 210 = 666.

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 47 ways as a sum of consecutive naturals, for example, 186053425 + ... + 187237595.

It is an arithmetic number, because the mean of its divisors is an integer number (6070486053060).

Almost surely, 2^{221020200222210} is an apocalyptic number.

221020200222210 is an abundant number, since it is smaller than the sum of its proper divisors (361746460871550).

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

221020200222210 is a wasteful number, since it uses less digits than its factorization.

221020200222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213464 (or 1213461 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 221020200222210 its reverse (12222002020122), we get a palindrome (233242202242332).

The spelling of 221020200222210 in words is "two hundred twenty-one trillion, twenty billion, two hundred million, two hundred twenty-two thousand, two hundred ten".