122221212110 has 16 divisors (see below), whose sum is σ = 225114419376. Its totient is φ = 47751543168.

The previous prime is 122221212107. The next prime is 122221212131. The reversal of 122221212110 is 11212122221.

It is a super-2 number, since 2×122221212110² (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 7 ways as a sum of consecutive naturals, for example, 142117259 + ... + 142118118.

It is an arithmetic number, because the mean of its divisors is an integer number (14069651211).

Almost surely, 2^122221212110 is an apocalyptic number.

122221212110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122221212110 is a deficient number, since it is larger than the sum of its proper divisors (102893207266).

122221212110 is a wasteful number, since it uses less digits than its factorization.

122221212110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284235427.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122221212110 its reverse (11212122221), we get a palindrome (133433334331).

The spelling of 122221212110 in words is "one hundred twenty-two billion, two hundred twenty-one million, two hundred twelve thousand, one hundred ten".