221012022110 has 32 divisors (see below), whose sum is σ = 456828681600. Its totient is φ = 76138112160.

The previous prime is 221012022031. The next prime is 221012022137. The reversal of 221012022110 is 11220210122.

It is a super-2 number, since 2×221012022110² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52871600 + ... + 52875779.

It is an arithmetic number, because the mean of its divisors is an integer number (14275896300).

Almost surely, 2^221012022110 is an apocalyptic number.

221012022110 is an abundant number, since it is smaller than the sum of its proper divisors (235816659490).

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

221012022110 is a wasteful number, since it uses less digits than its factorization.

221012022110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105747416.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221012022110 its reverse (11220210122), we get a palindrome (232232232232).

The spelling of 221012022110 in words is "two hundred twenty-one billion, twelve million, twenty-two thousand, one hundred ten".