221212020012110 has 32 divisors (see below), whose sum is σ = 417232349291520. Its totient is φ = 84283510023328.

The previous prime is 221212020012103. The next prime is 221212020012199. The reversal of 221212020012110 is 11210020212122.

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, 2012060912 + ... + 2012170851.

It is an arithmetic number, because the mean of its divisors is an integer number (13038510915360).

Almost surely, 2^{221212020012110} is an apocalyptic number.

221212020012110 is a deficient number, since it is larger than the sum of its proper divisors (196020329279410).

221212020012110 is a wasteful number, since it uses less digits than its factorization.

221212020012110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024232032.

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

Adding to 221212020012110 its reverse (11210020212122), we get a palindrome (232422040224232).

The spelling of 221212020012110 in words is "two hundred twenty-one trillion, two hundred twelve billion, twenty million, twelve thousand, one hundred ten".