221022021212010 has 64 divisors (see below), whose sum is σ = 589934276352000. Its totient is φ = 58884983678016.

The previous prime is 221022021211993. The next prime is 221022021212023. The reversal of 221022021212010 is 10212120220122.

It is a happy number.

221022021212010 is a `hidden beast` number, since 2 + 210 + 220 + 21 + 212 + 0 + 1 + 0 = 666.

221022021212010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 376247485 + ... + 376834464.

It is an arithmetic number, because the mean of its divisors is an integer number (9217723068000).

Almost surely, 2^{221022021212010} is an apocalyptic number.

221022021212010 is an abundant number, since it is smaller than the sum of its proper divisors (368912255139990).

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

221022021212010 is a wasteful number, since it uses less digits than its factorization.

221022021212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753083052 (or 753083046 counting only the distinct ones).

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

Adding to 221022021212010 its reverse (10212120220122), we get a palindrome (231234141432132).

The spelling of 221022021212010 in words is "two hundred twenty-one trillion, twenty-two billion, twenty-one million, two hundred twelve thousand, ten".