221010021110 has 8 divisors (see below), whose sum is σ = 397818038016. Its totient is φ = 88404008440.

The previous prime is 221010021107. The next prime is 221010021181. The reversal of 221010021110 is 11120010122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221010021091 and 221010021100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11050501046 + ... + 11050501065.

It is an arithmetic number, because the mean of its divisors is an integer number (49727254752).

Almost surely, 2^221010021110 is an apocalyptic number.

221010021110 is a deficient number, since it is larger than the sum of its proper divisors (176808016906).

221010021110 is a wasteful number, since it uses less digits than its factorization.

221010021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22101002118.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 221010021110 its reverse (11120010122), we get a palindrome (232130031232).

The spelling of 221010021110 in words is "two hundred twenty-one billion, ten million, twenty-one thousand, one hundred ten".